Answer:
Dopamine
Explanation:
Dopamine receptors type 2 (D2) are expressed in the adrenal glands. More so, dopamine helps in the modulation of aldosterone and catecholamine secretion from the adrenal gland.
A plant makes glucose during photosynthesis. Glucose consists of the elements carbon, hydrogen, and oxygen. What is the source of the elements for the glucose that the plant makes? Construct an explanation.
Answer:
The carbon source is the air, the oxygen and hydrogen source is the water.
Explanation:
The chemical formula of glucose is C6H12O6, as we can see it consists of carbon, hydrogen and oxygen atoms. The plants, using the energy from sunlight and these elements, produce glucose to use and store for energy.
The carbon that is used for glucose is provided from the carbon dioxide that is used for photosynthesis. The hydrogen and oxygen that is used for glucose is provided from the water that the plants receives.
I hope this answer helps.
What are the differences between dandelions and grass?
Answer:
the difference is that grass is a family of plants and a dandelion is a plant.
Explanation:
By drawing nutrients like calcium from the soil's depths, the deep taproot makes them available to other plants. Although most people believe they destroy lawns, dandelions actually fertilize the grass.
What differences between dandelions and grass?With their bright yellow blossoms and basal leaves, dandelion plants are easily recognized (leaves which grow from the bottom of the stem only).
Dandelion leaves are lobed and secrete a milky sap, and the flowers develop on hollow, solitary, branching stems.
Dandelions have a long taproot that, if cut, can produce several new plants. One of the reasons dandelions draw such unfavorable attention is because of their taproot.
A single, fleshy dandelion taproot can reach a depth of many feet, and its sides are covered in tiny, hair-like roots.
Therefore, the difference is that grass is a family of plants and a dandelion is a plant.
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Which example is a short-term environmental change?
O
ice age
O
global warming
large asteroid impact
tsunami
Answer:
tsunami
Explanation:
A tsunami is an example of a short-term environmental change.
Explanation:A short-term environmental change is a change in the environment that occurs over a relatively brief period of time. Out of the examples given, the tsunami would be considered a short-term environmental change. Tsunamis are powerful ocean waves caused by movements in the seafloor. They often result from earthquakes, volcanic eruptions, or large underwater landslides. While tsunamis can have devastating effects, their impact on the environment is relatively short-lived compared to other examples like global warming or ice ages.
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Echinoderms _____. _____ Select one: a. have an exoskeleton of hard calcareous plates b. often use tube feet to move around in their environment c. digest their food outside of the organism d. circulate hemolymph in their water vascular system e. are most often found in freshwater environments
Answer:
B. often use tube feet to move around in their environment
Explanation:
Tube feet are tiny tubular projections of echinoderms on the underside (oral side). They are a member of the echinoderm water vascular system.
Tubular feet are used for feeding, breathing and shifting. They are arranged around the sides, in grooves. They work by hydraulic pressure. They are used to transfer food in the centre to the oral mouth, and may stick to surfaces. Tube feet allow certain animals to stick and travel slowly to the ocean floor. for example starfish uses tube feet for the above functions.
Hence, the correct option is B.
What is the end result of mitosis and meiosis?a.Mitosis and meiosis result daughter cells for growth, development and reproduction in the living world.b.Mitosis results similar daughter cells generally for growth and development. In asexual mode of reproduction, mitosis helps in increasing the number of cells.c.Meiosis results variations and helps the sexual mode of reproduction. The resultant daughter haploid cells unite during the fertilization process and retains the diploid number of chromosomes.
Answer:
one cell with two identical copies of DNA
Explanation:
Meiosis produces genetically unique and haploid daughter cells for sexual reproduction, while mitosis produces genetically identical and diploid daughter cells for growth and development.
Explanation:Meiosis results in genetically unique and haploid daughter cells, which are involved in sexual reproduction. It involves two rounds of nuclear division, resulting in four daughter nuclei. Mitosis, on the other hand, produces genetically identical and diploid daughter cells that are used for growth, development, and tissue repair. It is a single nuclear division process.
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Independent assortment of chromosomes occurs during _____.
Answer:
homologous chromosomes are randomly distributed during anaphase I, separating and segregating independently of each other.
Explanation:
Final answer:
Independent assortment occurs during meiosis-I in eukaryotic organisms to produce gametes with a mixture of the organism's maternal and paternal chromosomes.
Explanation:
Independent assortment of chromosomes occurs during meiosis-I in eukaryotic organisms, specifically anaphase-I of meiosis, to produce a gamete with a mixture of the organism's maternal and paternal chromosomes. Along with chromosomal cross-over, this process aids in increasing genetic diversity by producing novel genetic combinations.
During the signal transduction process, the signal often triggers a signal transduction cascade. For example, a single activated protein A molecule activates hundreds of protein B molecules, and so on, until a cellular response occurs. What purpose does this cascade serve
Answer:
The cascade amplifies the cellular signal, thereby receptor activation lead to potent responses
Explanation:
Usual signal transduction is produced by protein phosphorylation, this posttranslational modification activates signal transductors in order to bind receptors and ligands. In multicellular organisms, the signal transduction pathways regulate critical cellular processes including, for example, cell communication
Which phrase describes the phenomenon that implies that small atmospheric changes affect
the weather weeks or months later?
A) the butterfly effect
B) short-range forecast
C) long-range forecast
D) automated weather
Answer:
A) the butterfly effect
Explanation:
I dont have an explanation but i got the answer right, sorry
Answer:
The butterfly effect
Explanation:
Edg. 2020
State if the body had been dead for more than or less than 12 hours based on the number of degrees lost (19 degrees). *
After the first 12 hours, the body loses about 0.39°C (0.7°F) per hour. than 12 hours. you use the rate of 0.78°C per hour to estimate the time of death. Temperature of dead body is 32.2°C (90°F)
Explanation:
This phase is known as algor mortis, or the death chill. Each hour, the body temperature falls about 1.5 degrees Fahrenheit (0.83 degrees Celsius) until it reaches room temperature. At the same time, without circulation to keep it moving through the body, blood starts to pool and settle.
he decrease in body temperature follows a somewhat linear progression: 3 two degrees Celsius in the first hour; one degree each hour thereafter.
What is the difference between the cerebral cortex of an adult and that of an adolescent?
Answer: the part of the brain that does decision making is different because adolescents arent fully grown
Explanation:
16. During electron transport reactions a. OH- accumulates on the outside of the membrane while H accumulates on the inside. b. OH- accumulates on the inside of the membrane while H accumulates on the outside. c. both OH- and H accumulate on the inside of the membrane. d. both OH- and H accumulate on the outside of the membrane
Answer:
Option B, OH- accumulates on the inside of the membrane while H+ accumulates on the outside.
Explanation:
In electron chain reaction, the electrons move through a series of electron transporters thereby undergoing redox reactions. This leads to accumulation of hydrogen ion (H+) with in the matrix and hence development of concentration gradient that leads to diffusion of hydrogen ion out of the matrix and accumulation of OH- ion on the inner side of the matrix while passing through ATP synthase
Hence, option B is correct
Final answer:
During electron transport reactions, hydrogen ions (H+) accumulate on one side of the membrane, creating an electrochemical gradient that can be used to synthesize ATP.
Explanation:
In the electron transport chain, a concentration gradient of hydrogen ions (H+) is established across the mitochondrial membrane. This creates an electrochemical gradient, with H+ ions accumulating on one side of the membrane. The electrons flow through a series of membrane-bound carriers, ultimately being accepted by oxygen to form water, while the H+ ions are pumped across the membrane.
The buildup of H+ ions on one side of the membrane creates a proton gradient that can be utilized to synthesize ATP from ADP and inorganic phosphate (Pi) through the action of ATP synthase.
Which of the following planets is a terrestrial planet with an iron and nickel core? Saturn Jupiter Mars Neptune
Answer:
Mars
Explanation:
Proccess of elimination:
Mars is the only terrestrial planet of the 4 options; the rest are Jovian Planets
Answer: I believe it’s Mars
Explanation:
Colonialism is defined as:______
a. the maintenance of political, social, economic, and cultural dominance over a people by a foreign power for an extended period
b. an approach that contends industrialized nations continue to exploit developing countries for their own gain
c. the far reaching process by which peripheral nations move from traditional or less developed institutions to those characteristic of more developed societies
d. continuing dependence of former colonies on foreign countries.
Answer:
a. the maintenance of political, social, economic, and cultural dominance over a people by a foreign power for an extended period
Colonialism is defined as the maintenance of political, social, economic, and cultural dominance over a people by a foreign power for an extended period
Explanation:
Colonialism is the military, economic,cultural oppression and domination of one country over another for an extended period. Often times colonialism was resisted through language,history and identity construction. During colonialism, people often used one of the following strategies to cope:
SeparatismRe-creationSyncrestismMimicryActive participationAssimilationAnswer:
a.
Explanation:
This is the process that took place here in the Americas, in Africa, Oceania in some parts of Asia. Where a Power, sends settlers and maintain dominance over another one for a period.
Colonialism has been mostly designed as an exploitation way of enriching the metropolis, the powers.
There has been and there is some variations within but, basically that's the process.
2.
Which statement is NOT true about all forms of radiation?
1. All objects absorb radiant energy.
2. All objects emit radiant energy.
3. It can travel through empty space.
4. Radiation always causes illness.
5. It is the movement of heat by electromagnetic waves.
Answer:
3 it can travel through empty space
The incorrect statement about radiation is that it always causes illness. Radiation, which is the transfer of energy through electromagnetic waves, is not inherently harmful and is vital for many natural processes.
The statement that is NOT true about all forms of radiation is: Radiation always causes illness. This is a misconception, as radiation refers to the transfer of energy through electromagnetic waves, which can occur naturally and are not always harmful. Objects at temperatures above absolute zero emit radiant energy, and this energy transfer does not require a medium; it can travel through empty space. Radiation is vital for various natural processes, such as photosynthesis in plants. While certain types of radiation at high levels can cause harm and lead to illness, not all radiation is harmful and many types are essential for life.
Which is the SIMPLEST level of organization in a human being?
Answer: Cells? If not this, then probably atoms, but most likely cells.
Explanation: Everything in the human body is made of cells. All cells are made of atoms.
Scientists have successfully cloned sheep and cattle for several years. A farmer is considering the advantages and disadvantages of having a flock of sheep cloned from a single individual. Discuss the issues the farmer should take into account before making a decision.
Answer:
Cloning is the mechanism by which one living organism takes genetic material and produces identical copies of it. Cells, organs, chromosomes and whole species have been cloned by geneticists.
The scientist need to take of some of the issues before cloning of sheep are as following:
Conflict with long-standing religious and social values about human dignity, probably infringing the principles of equality, identity and autonomy of each person.Cloned embryos face the same difficulties as naturally occurring pregnancies, plus others that are unique to cloning, so embryonic condition should be maintained. Cloned embryos surviving pregnancy may be born with a number of birth defects and other health issues. However, cloned cells can lack the programming required to tell the genes when to turn on and off. The outcome could be disorganised cell growth or abnormal functioning of the cell, all of which may lead to death of an organism.Final answer:
A farmer considering cloning a flock of sheep should take into account the low success rates, potential health complications as observed in Dolly and other clones, and the bioethical considerations surrounding the cloning process.
Explanation:
When considering the cloning of a flock of sheep from a single individual, several key issues arise. The case of Dolly the sheep, the first cloned agricultural animal, provides insights into potential challenges. Reproductive cloning had a very low success rate at the time, and Dolly herself lived for seven years before dying of respiratory complications. There is a concern that the age of the donor DNA might affect the lifespan of the clones, as observed with Dolly, whose DNA came from an older individual. Also, since that time, cloned animals have been reported to exhibit various abnormalities, including those affecting the face, limbs, and heart.
There are also potential benefits of cloning, such as creating animals that overproduce certain proteins for medical purposes, and even possibly bringing back extinct species. However, alongside the practical considerations, there are also bioethical considerations to weigh, as the debate over cloning's morality, especially concerning therapeutic uses, is still ongoing. A farmer contemplating cloning must weigh these potential health risks and ethical debates against cloning's potential benefits.
How do scientist determine the health
of a body of water ?
What factors are consider ?
Answer:
Scientists measure temperature, acidity (pH), dissolved solids (specific conductance), particulate matter (turbidity), dissolved oxygen, hardness and suspended sediment.
pH test strips and color disk tests are widely available. More expensive, higher-tech options include electrode-based pH meters. pH is a measure of hydrogen ion activity, which means that it tells us how acidic or basic the water is These include temperature, acidity (pH), dissolved solids (specific conductance), particulate matter (turbidity), dissolved oxygen, hardness and suspended sediment. Each reveals something different about the health of a water body.
Which organelle captures the energy from sunlight and converts it to chemical energy
Answer:
the chloroplast
Explanation:
The chloroplast is an organelle usually found in plant cells and also in eukaryotic algae that aids in capturing energy from sunlight and converting it to chemical energy. This organelle aids in conducting photosynthesis which is a process by which these organisms manufacture their food and provide energy for their various metabolic activities. They contain chlorophyll which is a photopigment that helps to perform this function.
The chloroplast, an organelle found in plant cells, captures energy from sunlight and converts it into chemical energy through the process of photosynthesis.
Explanation:The organelle that captures energy from sunlight and converts it into chemical energy in a process known as photosynthesis is the chloroplast. This organelle, found exclusively in plant cells, contains a pigment called chlorophyll which gives plants their green color and absorbs sunlight. This sunlight is then used to transform carbon dioxide and water into glucose (a type of sugar) and oxygen, providing the plant with a usable form of energy.
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Which adrenal gland homeostatic imbalances is characterized by persistent elevated blood glucose levels
Answer:
Cushing's syndrome
Explanation:
Cushing's syndrome or hypercortisolism is a syndrome caused by high levels of the hormone cortisol in the body.
The prolonged exposition to high levels of glucocorticoids such as cortisol has been associated with the occurrence of this syndrome
A child is born with sickle cell anemia. What can you conclude about the potential genotypes of the parents?
Answer:
The potential parental genotypes could be "both recessive" or "both heterozygous".
Explanation:
Sickle cell anemia is a disease where there are not enough red blood cells throughout the body so they are not able to carry the necessary amount of oxygen for the body to function properly. It is a disease that is carried on recessive genes so for an individual to have this disorder, they must have to recessive genes from both parents. In this case the potential parental genotypes could be "both recessive" or "both heterozygous".
I hope this answer helps.
The DSM-5 states criteria for the diagnosis of premature ejaculation by specifying that a man must ejaculate within _____ of beginning sexual activity and before the man wishes it on _____ of occasions over a period of at least _____.
Answer:
1 minute
75-100%
6 months
Explanation:
Premature ejaculation is the release of semen from the male reproductive organ at the very early stage of sexual activity usually between 30 seconds to one minute. Studies have shown that, it is rampant among first timers (those experiencing sexual activity for the first time) , in some which may persist for a while or over an extended period of time. However , a lot of remedies has been put in place to combat premature ejaculation such as ;usage of aphrodisiacs, or drugs from pharmaceutical stores.
Premature ejaculation which is the inability to full control over reflexes coordinating ejaculatory roles are sometimes caused by hormonal imbalance or psychological factors such as stress, over anxiety etc.
Answer:
The DSM-5 states criteria for the diagnosis of premature ejaculation by specifying that a man must ejaculate within __1 minute__ of beginning sexual activity and before the man wishes it on ___75%__ of occasions over a period of at least __6 months___.
Explanation:
The DSM-5 states that a person has premature or rapid ejaculation when he ejaculates after one minute has passed from the penetration, and the man does not want to ejaculate yet on the 75% or 100% of the time in 6 months or longer. An occasional premature ejaculation is normal, but if it happens regularly, a professional can help.
Microscopic examination of a tissue reveals an open framework of fibers with a large volume of fluid ground substance and elastic fibers. this tissue would most likely come from:____________.
a. inner wall of a blood vessel
b. lungs
c. spleen
d. tissue that separates skin from underlying muscle
e. bony socket of eye
Answer:
d.
Explanation:
Based on the scenario being described within the question it can be said that this tissue would most likely come from tissue that separates skin from underlying muscle. Also known as the superficial fascia, this is the main coating beneath the skin that is mainly made up of different amount of fat, which also surrounds the bodies organs.
The genetic code was originally deciphered, in part, by experiments in which synthetic polynucleotides with repeating sequences were used as mRNAs to direct protein synthesis in cell-free extracts. Under these conditions, ribosomes could be made to start translation anywhere within the RNA molecules, with no start codon necessary. What peptide would be made by translation from a synthetic mRNA made of the repeating dinucleotide CGCG…?
A. a polymer of arginine plus a polymer of alanine
B. the peptide Met–Arg–Ala–Arg–Ala…
C. a polymer of alanine: Ala–Ala–Ala…
D. a peptide containing alternating arginines and alanines
E. a polymer of arginine: Arg–Arg–Arg…
Answer: a peptide containing alternating arginines and alanines.
Explanation:
As the mRNA has a repeating unit of CGCG.
Now if we extend the units with more CG (CGCGCGCGCGCG) the pairing will be as CGC-GCG-CGC-GCG. and if we see the amino acids coded by these codons are arginine for CGC and alanine for GCG.
As this synthetic mRNA doesn't require any initiation codon (AUG) thus the polypeptide will not have methionine, which is the first amino acid in every polypeptide coded by the initiation codon.
Thus, the synthetic mRNA will code for peptide having alternating arginines and alanines amino acids.
From cells to major organ systems, the architecture of the body and the functions the body can perform are very closely related. Can you identify body cells, tissues, organs, systems that demonstrate this relationship and discuss its significance?
Answer:
Answer below.
Explanation:
In the respiratory system, cells of the lungs or alveoli are made up of simple squamous epithelium and have a lot of mitochondria present in them. This helps in the function of exchange of gases and the transport of these gases to and from the body thereby fulfilling the role of the respiratory system.
The skeletal muscle cells are made up of numerous mitochondria and are spindle-shaped. The fibres form the tissues of the muscles. The mitochondria helps in the skeletal muscle's role in motion as it makes sure energy is released for this activity. The skeletal muscle fibres are arranged in such a way as to facilitate their contraction and relaxation during movement.
The cells of the small intestine are made up of Golgi apparatus and vesicles and also organelles which facilitate the absorption of food nutrients from the intestinal passage.
You are studying leaf development in a member of the mustard family. You identify several mutants of interest in this plant and make pure (true-breeding) lines of each mutant for further study. You decide to conduct a genetic analysis of these mutant lines by crossing each with a pure wild-type line. The numbers in the F2 indicate the number of progeny in each phenotypic class. Three crosses between pure lines of flowers. The first cross is between twist and wild type flowers. F1 flowers have twisted leaves. When F1 flowers were crossed with each other, 53 twisted and 18 wild type flowers were obtained. The second cross is between forked and wild type flowers. The F1 generation is all forked, and when they are crossed with each other, 49 forked and 16 wild type flowers were obtained. The third cross is between pale and wild type flowers. The F1 generation was of middle coloring and when they were crossed with each other, 17 wild type, 16 pale, and 34 middle type flowers were obtained. From these results, determine the relationship between the mutant allele and its corresponding wild-type allele in each line.
Answer:
•The relationship between the twist and the wild type flower in the first crossing is known as a COMPLETE DOMINANCE
•The relationship between the forked and the wild type flower in the second crossing is also known as a COMPLETE DOMINANCE
•The relationship between the pale and the wild type flower in the third crossing is known as an INCOMPLETE DOMINANCE
Explanation:
A complete dominance is characterised by having one of the genes (the dominant gene) in an heterozygous condition, completely masking the effect of the other (the recessive gene) of thesame allelic pair. E.g. if the genes in allelic is represented with Aa, "A" is said to completely dominate "a" if it does not allow "a" to Express itself phenotypically.
The heterozygous condition is always the result of the F1 generation
and the F2 generation of a Complete dominance is always characterised by a phenotypic ratio of 3:1 which is in line with the results gotten from the first crossing and the second crossing as stated in the question.
An complete dominance is characterised by having an intermediate progeny in the F1 generation which was evident in the result of the third crossing. Also a phenotypic ratio of 1:2:1 in the F2 generation is also a characteristic feature of an Incomplete dominance relationship which was also evident in the third crossing.
The twisted and forked traits are dominant to the wild-type, as shown by their 3:1 phenotypic ratios in the F2 generation. For the pale trait, the 1:2:1 F2 generation phenotypic ratio suggests incomplete dominance with an intermediate phenotype in heterozygotes.
To determine the relationship between the mutant allele and its corresponding wild-type allele in each line, we can refer to Mendel's laws of inheritance, specifically considering the phenotypic ratios in the F2 generation. The first and second crosses showed a phenotypic ratio close to 3:1, indicating that the twisted and forked traits are likely dominant over their corresponding wild-type phenotypes. Thus, the mutant allele for twist and forked would be dominant to the wild-type allele.
For the third cross involving pale and wild-type flowers, the phenotypic ratio is 1:2:1 in the F2 generation, with wild type, pale, and middle type flowers. This suggests incomplete dominance, where the heterozygous condition results in an intermediate phenotype (middle type). Therefore, for the pale mutant, the relationship with the wild-type allele is one of incomplete dominance.
"What does the competition coefficient in the Lotka-Volterra competition model describe"? A. The difference in the carrying capacities of two species B. The effect of adding one individual of a species on the population growth rate of another species C. The number of individuals needed to drive another species to extinction D. The area of zero population growth
Answer:
The competition coefficient in the Lotka-Volterra competition model describes B. The effect of adding one individual of a species on the population growth rate of another species
Explanation:
The competition coefficient in the Lotka-Volterra competition model explains species competing for some common resource. It explains the effect of adding one individual of a species on the population growth rate of another species. They will compete for food with the colonies located near to them. When using equations for predation, the base population model is exponential.
Answer:
D. The area of zero population growth
Explanation:
Competition coefficient can be explained as the degree to which an individual of one species affects through competition. It can also be described as the growth or equilibrium level of a second species' population, relative to the effect of an individual of the second species.
The Lotka-Volterra model predicts that there could be a possibility of a stable coexistence of two species, only when intraspecific competition has a greater effect than interspecific competition.
In conclusion, the competition coefficient in the Lotka-Volterra competition model resulted in zero isocline, which shows one species having a growth rate (dN/dt) of zero.
Approximately how long has the victim been dead if his body temperature was 78.6°F?
Based on the victim's body temperature of 78.6°F, the estimated time of death is approximately 13 hours and 24 minutes.
Explanation:In order to determine how long a person has been dead based on their body temperature, we need to consider the concept of post-mortem cooling or algor mortis. The rate at which a body cools after death depends on various factors such as ambient temperature, clothing, and body composition. On average, a body cools at a rate of about 1.5°F (0.83°C) per hour in the first 12 hours, and then slows down.
If the victim's body temperature is 78.6°F, we can calculate an estimate by subtracting the body temperature from the normal average body temperature of 98.6°F. The difference is 20°F or 11.1°C. If we divide this difference by the rate of cooling (0.83°C per hour), we can estimate that the victim has been dead for approximately 13.39 hours or 13 hours and 24 minutes.
To estimate the time of death based on body temperature of 78.6°F, you can use the concept of postmortem cooling, where the body loses about 1.5°F per hour after death. By calculating the difference from the normal body temperature of 98.6°F and dividing it by the cooling rate, you can get a rough estimate. A difference of 20°F suggests approximately 13.3 hours since death.
Determining the time of death based solely on body temperature can be challenging, as various factors like ambient temperature, clothing, and individual characteristics play a role. However, a general guideline is that the body loses about 1.5°F per hour after death, known as postmortem cooling or algor mortis. If the victim's body temperature is 78.6°F, you could estimate the time of death by calculating how many degrees below the normal body temperature of 98.6°F the body is and then dividing by the average hourly cooling rate.
For example, if the difference is 20°F (98.6°F - 78.6°F), and the average cooling rate is 1.5°F per hour, you could estimate around 13.3 hours since death (20°F / 1.5°F per hour ≈ 13.3 hours). This is a simplified calculation, and actual conditions may vary.
The barn above looks red because certain rays of light are absorbed by the barn and other rays of light are reflected by the barn. What must be true about the original sunlight before it hits the barn?
Answer:
The original sunlight is a mixture of colors.
Explanation:
The sunlight is perceived by our eyes as white because it is a mixture of seven colors - violet, indigo, blue, green, yellow, orange, and red. When these colors of light separate from each other and are differentially absorbed and reflected, we can see the different objects in different colors. The reason for the differential absorption and reflection is that the different colors have different wavelengths. Therefore, the barn looks red because the red light is reflected by the barn and other lights are absorbed, however, the original color of the sunlight is white.Answer: the answer is “ The original sunlight is a mixture of colors“ :)
Explanation:
What is a useful first step in assessing potential environmental health risks in a community? a.Conduct risk assessments of select individuals b.Survey community members Review c.Environmental Protection Agency (EPA) reports d.Perform a windshield survey
Answer: d. Perform a windshield survey
Explanation:
Environmental health risks include air pollution, disease vectors, lack of water and inadequate sanitation, electronic waste, and chemical hazards.
Conducting a windshield survey is a valuable first step in identifying possible safety threats to the environment. This offers first-hand neighbourhood information and areas of concern which need to be investigated.
Hence, the correct option is d.
Which description shows competition in an environment?
a
three organisms battling over limited resources
b
an organism that feeds on some food
c
an organism that finds a place to sleep
d
three organisms of the same species living in an area
Three organisms battling over limited resources shows competition in an environment. Thus, option A is correct.
what are the type of competition among the species?It is a natural interaction between two or more same or different organisms for the same resources like food, shelter, light, substrate etc.
This type of interaction shows an effect on the fitness between two competitive organisms.
The major factor influencing competition are the density of the individuals and the number of organisms.
The competition is one of the major driving forces for evolutions it is involve in adaptation of species according to changing environment.
On the basis taxonomy, competition of species can be interspecific and intraspecific, similarly on the basis of mechanism it is divided into interference, exploitative and apparent competition.
According to influence, it can be direct and indirect competition.
Thus, option A is correct.
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