Answer:
The first one is constructive and the second one is destructive.
Explanation:
Destructive Forces: processes that destroy
landforms.
– 2 types: Slow (weathering) and Fast (Erosion)
– Ex. landslides, volcanic eruptions, earthquakes,
floods
Constructive forces: forces that build up an
existing landform or create a new one.
– Caused by: water, gravity, wind and glaciers.
– Ex: deposition, landslides, volcanic eruptions, floods
Earth has been shaped by actions that build up, or create, Earth’s surface. These are called Constructive forces. Actions that wear down, or destroy, Earth’s surface are Destructive forces.
Constructive forces:
The forces or events that create the earth surface. They caused by water, gravity, wind and glaciers.
For example- deposition, landslides, volcanic eruptions, floods.
Destructive forces:
The forces or processes that destroy the earth's surface are known as destructive forces. They are of 2 types
Slow (weathering)Fast (Erosion)Therefore, The Constructive forces create the earth, and destructive forces destroy the earth surface.
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An autopsy report for a deceased individual lists natural causes as the manner of death. Which is the most likely cause of death?
asphyxia
heart attack
blunt force trauma
sharp force trauma
Final answer:
The most likely cause of death listed under natural causes in an autopsy report is a heart attack. Heart attacks, or myocardial infarctions, occur due to the obstruction of blood flow in the coronary arteries, leading to the death of heart tissue.
Explanation:
When an autopsy report states that an individual died of natural causes, it usually refers to health issues that arise from within the body, not caused by external factors. In this context, the most likely cause of death would be a heart attack, which is the blockage of blood flow to heart muscle tissues potentially resulting in the death of cardiac muscle fibers.
Heart attacks fall under the category of coronary artery disease, which is the leading cause of death worldwide. This condition, called myocardial infarction, occurs when the buildup of plaque in the arteries obstructs blood flow, causing ischemia and subsequent death of cardiac tissues. In contrast, asphyxia, blunt force trauma, and sharp force trauma are typically considered unnatural causes of death and often result from external factors such as accidents, injuries, or violence, which do not align with the classification of natural causes.
What if a mutation occurred in the human insulin gene and the first codon was changed to CCG? Is
this a silent mutation? Explain how you know.
Yes, this will be a silent mutation.
Explanation:
The mutation which occurred in the human insulin gene where the first codon was changed to CCG will be a silent codon because this will not change the sequence of the amino acid and the amino acids formed will remain the same.
A silent mutation occurs due to base substitutions resulting in a change in the nucleotide that does not impact the amino acid or protein formed once the mRNA is translated. The protein will retains its functional aspects.
The point mutation occurs in only one base. Silent mutations are point mutations that code for the same amino acid as the original codon. In the exposed example, it is a silent mutation.
-----------------------
The mutation would still code for the same amino acid, meaning that it is a silent mutation.
When a change occurs in a single base pair, it is known as a point mutation.
Points mutations might be either silent, missense, or nonsense.
In silent mutations, the resulting mRNA codon codes for the same amino acid as the unmutated sequence. However, if the mutation causes the mRNA codon to code for a different amino acid, this mutation is a missense mutation. Finally, if the mutation causes mRNA codon to be a stop codon, we are referring to a nonsense mutation.In this example, the mutation is a point mutation, and the mutated base causes no change in the amino acid codification. So the protein remains the same.
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Describe three ways to slow population growth
To slow population growth, we can improve resource use efficiency with technology, change behaviors to promote smaller families and reduced consumption, and redistribute resources more equitably. Achieving Zero Population Growth through maintaining a replacement fertility rate is key, yet requires ethical considerations and humane approaches.
Explanation:To address the question of how to slow population growth, three main strategies have been identified. Firstly, one can use technology to improve the efficiency of resource consumption, thereby reducing the overall ecological footprint per person. Secondly, efforts can be made to change behaviors that contribute to high birth rates and excessive consumption. Thirdly, there is the option to distribute resources more fairly to achieve a balance in consumption needs globally.
Targeting the replacement fertility rate is also essential for achieving Zero Population Growth (ZPG), which occurs when the birth rate equals the death rate. This ensures women have enough children to replace themselves and their partners without contributing to population growth. Adjusting policies and social incentives to encourage family planning and responsible parenting can advance this cause. However, regulation of population growth involves complex ethical considerations and must be approached with sensitivity to human rights and personal choices.
Effective population control may also implement contraceptives, education on family planning, and other reproductive health services widely and equitably. Considering the implications on environmental problems, the regulation of human population towards sustainable numbers could potentially alleviate the strain on natural resources.
There are 2000 Hydrilla individuals per square kilometer in a certain area of a body of
water. With this information you can determine a population's density.
O
A. True
O
B. False
Answer:true
Explanation:
Final answer:
The statement that there are 2000 Hydrilla individuals per square kilometer is true for determining population density.
Explanation:
The statement that there are 2000 Hydrilla individuals per square kilometer in a certain body of water allows us to determine a population's density. This is true, as population density is defined as the number of individuals per unit area. Different methods, such as life tables, mark and recapture, and quadrat sampling, can be used to estimate population size and density. In this scenario, the individual count of Hydrilla is given, and no further calculations are necessary to determine the population density, which is 2000 individuals per square kilometer.
If a persons blood gets too warm what happeneds to thier blood vessels
Match the function to the structure or gland.
thyroid
regulates growth, water balance, and blood
pressure
thymus
regulates metabolism.
-
OOOO
pituitary
pituitary
part of the brain that helps to regulate the
endocrine system.
hypothalamus
helps children develop a strong immune
system
Answer:
pituitary - regulates growth, water balance, and blood pressure
thyroid - regulates metabolism
hypothalamus - part of the brain that helps to regulate the endocrine system
thymus - helps children develop a strong immune system
Explanation:
right on edg
Following are the matches:
thyroid - regulates growth, water balance, and blood pressure
thymus - helps children develop a strong immune system
pituitary - part of the brain that helps to regulate the endocrine system
hypothalamus - regulates metabolism
The thyroid regulates several bodily systems. Thyroxine (T4) and triiodothyronine (T3) hormones regulate metabolism. These hormones regulate energy usage, affecting growth, development, and body temperature. The thyroid regulates fluids and blood pressure. Thyroid hormones regulate other hormones and cardiovascular function.
The "master gland," the pituitary, is located near the base of the brain. It produces and releases hormones that govern other endocrine glands. These hormones govern growth, reproduction, stress response, and water balance.
Above the pituitary gland is the hypothalamus, which controls metabolism. It produces hormones that regulate body temperature, hunger, thirst, and sleep-wake cycles according on bodily signals. The hypothalamus controls pituitary hormone release, affecting the endocrine system.
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Answer the following questions:
a. How many chromosomes does the tasmanian devil have in all? Are these the haploid or diploid?
b. How many pairs of chromosomes does the tasmanian devil have? Haploid or diploid?
c. The last pair of chromosomes are the _________. The previous pairs are called the _____.
d. If the tasmanian devil has ______, then it is a boy. If the tasmanian devil has ______, then it will be a female.
e. What would happen if a human had an extra chromosome? What is that called?
f. Could receiving extra chromosomes happen to the tasmanian devil? Why or why not? Use your past knowledge of important processes you have already learned about.
The following questions are answered below.
Explanation:
a. They have 14 chromosomes that occurs in 7 pairs which has X and Y sex chromosomes. They are diploid.
b. They have 7 pairs of chromosomes that includes X and Y sex chromosomes. They are diploid.
c. The last pair of chromosomes are the sex chromosomes. The previous pairs are called the autosomes.
d. If the Tasmanian devil has 14 chromosomes , then it is a boy. If the Tasmanian devil has 28 chromosomes , then it will be a female.
e. The one extra chromosomes are the egg or sperm that means three in fertilized egg. They are called as Trisomy.
f. The Tasmanian devil's will not get Down syndrome but some times there may be trisomy if there are three chromosomes instead of two.
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Which are present when freezing rain occurs? SELECT TWO OPTIONS!!!
A. ice pellets
B. snowflakes
C. cold surfaces
D. liquid precipitation
E. warm temperatures
Answer: A and C
Explanation: Ice pellets fall from the sky and stick to cold surfaces
Which of the following describes the epididymis?
a tube that transports sperm to the urethra
a vesicle that produces fluid and gives sperm nourishment and motility
a gland that contributes fluid to semen
a tube that stores and develops sperm cells from the testes
Answer:
a gland that contributes fluid to semen
Explanation:
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The epididymis is a tube that stores and develops sperm cells from the testes.
Functions of the epididymisThe epididymis is a major component of the male reproductive system.
It is a long, coiled tube found around the distal end of each testicle. Sperm cells that are synthesized in the testes are stored in the epididymis.
Since newly synthesized sperm cells are immature, they are nurtured to maturity while being stored in the epididymis.
The contraction of the epididymis during arousal forces the matured sperm cells into another structure known as the vas deferens.
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Which of the following is not mechanical energy?
A. Kinetic
B. Chemical potential
C. Gravitational potential
D. Elastic potential
Answer:I think c
Explanation:
Final answer:
The option that is not mechanical energy is B, Chemical potential. Mechanical energy includes both kinetic and potential energy (such as gravitational and elastic), but not energy stored in chemical bonds, which is referred to as chemical potential energy.
Explanation:
The question asks which of the listed options is not mechanical energy. Mechanical energy can be either kinetic energy, which is energy due to motion, or potential energy, which is stored energy based on position. Potential energy can be of various types, such as gravitational and elastic. However, chemical potential energy is not considered mechanical energy as it is energy stored in the chemical bonds of substances. Therefore, the correct answer to the question would be option B, Chemical potential
Explain the relationship between inputs and outputs in cellular respiration and photosynthesis for an organism
Consider these two characteristics.
Characteristic 1: a scar due to an injury
Characteristic 2: the shape of a person's face
Which characteristic is a trait that can be inherited?
Explain your answer.
Characteristic 2: The shape of a person's face is a trait that can be inherited.
Explanation:
Inherited traits or phenotypes are those which are naturally and genetically inherited from the dominant parent to the offspring. These are the basic traits with which an individual is born. Most of the inherited characteristics are passed on generation after generations.
To inherit a trait, the phenotypes should be present in the parents naturally by birth and should not be acquired artificially. Few examples of inherited traits include color of the hair, skin or eyes; shape of the face; height of a person; type of hair etc.
Most of the facial features like shape of the nose or eyes, structure of cheekbones, eye inner corners, area below and above the lips etc are mostly inherited which also in turn determine the basic shape of the face.
A scar due to an injury happens accidentally and mostly may not be a permanent feature. This feature will not be passed on to the next generation.
Answer:
Only characteristics that are coded for by genes can be inherited. The shape of a person's face is inherited because this characteristic is coded for by genes. Characteristics that are due to environmental factors cannot be inherited. A scar due to an injury cannot be inherited because this characteristic is a result of an environmental factor.
Euglena will most likely act as consumers when place in an environment that has:
Euglena will act as consumers when there are other organisms for them to eat, and they can also act as primary producers through photosynthesis.
Explanation:Euglena will act as consumers when placed in an environment that has other organisms for them to eat. They can consume other organisms through phagocytosis or absorb solutes from their aquatic environment. Euglena can also act as primary producers by photosynthesizing and using sunlight to synthesize carbohydrates.
What is one problem with artificial selection
Final answer:
Artificial selection can lead to reduced genetic diversity, increased disease susceptibility, and potential health issues in the organisms being bred due to the focus on specific, sometimes purely aesthetic, traits.
Explanation:
One problem with artificial selection is that it may reduce genetic diversity among the organisms being bred. The process involves selecting individuals with desirable traits for reproduction, often leading to a population that shares very similar genes. As a result, the reduced variability in the gene pool can lead to an increased susceptibility to diseases, as the organisms lack diverse defenses. Furthermore, in focusing on particular traits, other beneficial genetic traits may be inadvertently lost or negative traits may be amplified unintentionally. For example, some dog breeds have been artificially selected for specific aesthetic traits, which has led to health issues related to those physical characteristics, such as respiratory issues in brachycephalic breeds like bulldogs and pugs.
Final answer:
Artificial selection can create organisms with traits that are too specialized for human use, leading to a dependency on humans and decreased ability to survive in the wild.
Explanation:
One problem with artificial selection is that it can lead to animals and plants that are highly specialized for human use but lack the ability to survive without human intervention. Domesticated species often possess traits that are exaggerated or deleterious in their natural environments. For instance, certain breeds of dogs or varieties of plants may be so specialized due to artificial selection that, should they find themselves in the wild, they would likely struggle to survive against predation, disease, or environmental stresses. This dependence on humans can be a significant drawback because it makes artificially selected organisms vulnerable outside of their cultivated habitats.
Homeostasis refers to an organism's ability to maintain a relatively constant internal environment. Sweating is a homeostatic process that humans undergo when it is hot.
How does sweating help humans maintain homeostasis?
A.
When a person sweats, chemical changes occur within the body that allow for the absorption of heat.
B.
Body heat is absorbed by sweat and then transferred to the air, which cools the person.
C.
Sweat is exposed to air, so heat is absorbed by the air and transferred to the body, cooling the person.
D.
Since the temperature of sweat is relatively low, allowing sweat to sit on the surface of the skin has a natural cooling effect.
Answer:
the answer is B. body heat is absorbed by sweat and then transferred to the air, which cools the person
Explanation:
When you sweat, breathe heavily and feel your heart pounding, it doesn't just mean you are having a good workout. These physiological factors are also vital to your body maintaining a state of homeostasis. Homeostasis is defined as a constant, steady environment despite external changes, such as exercise. Exercise affects your body temperature, blood oxygen levels, sugar levels and hydration – all properties necessary for your survival. Your body uses an automatic feedback system to preserve normal temperature and water levels, so you can keep exercising. Eat properly and drink plenty of fluids to help your body maintain homeostasis. so To maintain homeostasis, the blood vessels in your skin dilate to allow more blood flow to the surface of your body where it disperses the heat. ... The evaporation of sweat and breathing out warm air also serve to help cool your body and thereby maintain a steady temperature.
A- there is no chemical reaction when a person is sweating X
B- sweat DOES evaporate and it is absorbed buy heat and it is the right order
to maintain homeostasis
C- is like the answer B but not in the exact order but does state the facts X
D- homeostasis has nothing to do with temperature X
the tricky part about this question is B and C
sorry if am wrong.
please mark me as brainleast
Sweating help humans maintain homeostasis as body heat is absorbed by sweat and then transferred to the air, which cools the person. The correct option is B.
What is homeostasis?These physiological components are also essential to your body's ability to sustain homeostasis. Homeostasis is characterized as a consistent, stable state that persists despite external changes, including physical activity.
Your body's temperature, blood oxygen levels, sugar levels, and hydration—all elements crucial to your survival—are all impacted by exercise.
In order to maintain appropriate body temperature and water levels so that you may continue exercising, your body uses an autonomic feedback system.
Therefore, the correct option is B. Body heat is absorbed by sweat and then transferred to the air, which cools the person.
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explain in your own words, what a ring species is. How do adjacent populations interact throughout the ring
Final answer:
Ring species illustrate the process of speciation through geographical separation, where adjacent populations can interbreed around a physical barrier but the two end populations become so genetically distinct they no longer can, exemplified by the California salamander genus Ensatina.
Explanation:
A ring species is a fascinating demonstration of evolution in action, showcasing how populations of the same species can diverge genetically over geographical distances to the extent that they become distinct species. In essence, ring species provide a unique insight into allopatric and peripatric speciation, where populations are separated by geographic barriers. As these populations spread out, they form a ring around a physical barrier, interbreeding with adjacent populations throughout the ring. However, when the populations at the two ends of the ring meet, they are often no longer able to interbreed due to the significant evolutionary changes that have occurred, thereby fulfilling the criteria for being considered separate species. This scenario illustrates the continuous nature of population variation and the ambiguity in defining species boundaries. The California salamander genus Ensatina is often cited as an example of ring speciation.
A gardener crosses a true-breeding tall tomato plant bearing red fruit with a true-breeding dwarf tomato plant with yellow fruit. In tomatoes, tall vine (T) is dominant to dwarf vine (t) and red fruit (R) is dominant to yellow fruit (r).
Predict the phenotypes and genotypes of the F1 generation.
Cross of true breeding dominant and recessive tomato plants will have:
Phenotype ratio in F1 generation is 4:0
genotype ratio in F1 generation is 4:0.
Explanation:
Data given:
Tall vine = dominant TT
dwarf vine = recessive tt
red fruit dominant RR
yellow fruit recessive rr
true breeding tall tomato plant bearing red fruit is TTRR
true breeding dwarf tomato plant bearing yellow fruit = ttrr
the cross is shown in punnet square:
TR TR
tr TtRr TtRr
tr TtRr TtRr
the phenotype ratio- 4:0
the genotype ratio - 4:0
The phenotype is tall vine with red fruit
Genotype is all the progeny are heterozygous dominant.
Answer:
9 tall vine/red fruit; 3 tall vine/yellow fruit; 3 dwarf vine/red fruit; 1 dwarf vine/yellow fruit (9:3:3:1)
Explanation:
I just took this test
Do more-complex organisms always have more chromosomes than simpler organisms do? How do you know?
Answer:
no
Explanation:
More complex organisms often have larger genomes, but there are some very complicated organisms with very small genomes and likewise some surprisingly simple organisms with very large genomes.
The complexity of an organism doesn't determine the number of chromosomes, therefore, more-complex organisms don't always more chromosomes than the simpler organisms.
Chromosomes refer to the thread-like structures that can be found in the nucleus of plant and animal cells. Every chromosome consists of protein and DNA.
The complexity of an organism doesn't determine the number of chromosomes than it'll will have. There are organisms that have one cell and have several chromosomes than more-complex organisms. Therefore, the number of chromosomes doesn't correlate with the complexity of the organism.
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How are pedigrees a useful tool for understanding inheritance patterns?
Pedigrees are vital tools for studying inheritance patterns of traits across generations, identifying whether traits are dominant or recessive, and aiding in genetic counseling.
Pedigrees are essential tools that help us understand inheritance patterns within a family over several generations. They are graphical representations much like a family tree and are used to track the inheritance of specific traits, particularly genetic disorders. Pedigree analysis involves using a set of standardized symbols to denote sex, relationships, and phenotypes, facilitating the identification of dominant and recessive traits.
For instance, in a pedigree chart, males are indicated by squares and females by circles. Filled symbols represent individuals with a genetic condition, and by examining who in the pedigree has the disease, geneticists can predict whether the condition is autosomal dominant, autosomal recessive, or sex-linked. This information is invaluable for genetic counseling and for assessing the risk of diseases being passed to future generations.
By studying pedigrees, geneticists can make informed predictions about whether a trait will appear in an individual's offspring based on the previous appearance of the trait in ancestors. This is crucial for families with histories of genetic illnesses like Huntington's disease or cystic fibrosis. Pedigrees not only help with understanding disease inheritance but also assist in the calculation of the probability of an offspring inheriting a particular trait or disorder.
help pls it’s timedddd
Answer:
tt
Explanation:
I'm guessing that t is recessive, so it has to be double to be shown
Answer:
tt
Explanation:
These parallel scratches were most likely caused by
Ocean waves
Running water
Wind
Or Glacier ice
Answer:
Glacier ice
Explanation:
It looks like it has scratches that came from ice.
The narrowest taxon in the Linnaean system is the genus, order, or species
Answer:
species.
Explanation:
Species < Genus < Family < Order < Class < Phylum < Kingdom
The central vacuole of a plant cell is damaged.
What function is most affected by the damage?
Answer: Storage of Water
Explanation:
explain the two reasons why scientist think the idea of species is real
Answer: it is because look at dogs. And is are mammals
Explanation: homo sapeizn we are then yes hope it help
The idea of species is considered real in science because species can interbreed to produce viable offspring and they exhibit distinct morphological traits. These concepts are essential for taxonomy, conservation biology, and understanding evolutionary processes.
Understanding the Reality of Species
Scientists believe in the reality of species because of observed patterns in biology and evidence supporting the theory of evolution. The concept of a species is crucial as it helps in understanding the diversity of life and evolutionary processes. One core reason for recognizing species as real is based on the biological species concept, which states that organisms of the same species can breed and produce viable, fertile offspring, demonstrating reproductive compatibility. Another key reason is the observable morphological traits that differentiate species and allow for classification – the morphological species concept.
In the field of conservation biology, a consistent definition of species is vital for protecting ecosystems and understanding species interactions. Furthermore, the concept of species is foundational for studying evolutionary mechanisms such as mutations, natural selection, and speciation. The ability to define species allows scientists to reconstruct evolutionary pathways and understand biogeography.
Species are fundamental units in biology that serve as a basis for taxonomy and nomenclature. Throughout biology's
history, there have been many species concepts, but the biological, morphological, genetic, and evolutionary concepts are among the most accepted. This plurality reflects the complexity of life and the need for a flexible, yet consistent, understanding of what constitutes a species.
Plz help! I will give out BRAINLIEST for best answer
Answer:
===>
Explanation:
Phenotype: Long haired Husky
Genotype possibilities: LL, LL, Ll ,Ll
Probability that offspring is a dwarf: 50%
^ just fill in the punnet square
what is the connection between a circadian rhythm and the biological clock
Which one of these lifestyle factors has most contributed to climate change?
O
A. The need for transportation
B. The desire for entertainment
O
C. The need for health care
) D. The desire for nature appreciation
Pls
Answer:
The correct answer is option A. "The need for transportation".
Explanation:
It is estimated that the need for transportation accounts for about 29 percent of total greenhouse emissions in the United States, which is estimated to be the largest contributor to climate change. Land and air transportation affect the environment by the production of long-lived carbon dioxide and short-lived black carbon.
Compare and contrast mold and cast fossils
Final answer:
Mold and cast fossils originate from the remains of organisms after the skeletal material dissolves. Molds are the hollow impressions left in the rocks, while casts are formed when these molds are filled, creating a three-dimensional representation of the original organism.
Explanation:
Mold and cast fossils are common types of fossilization observed in paleontology. Both processes occur when the original skeletal material dissolves leaving an impression, or cavity, in sedimentary rock. This impression is known as a mold. If the mold later fills with new sediment or mineral deposits, it then becomes a cast. A cast fossil is essentially a three-dimensional replica of the original organism made from the mold.
For example, mollusks such as bivalves and snails often leave behind molds and casts because their shells can dissolve easily. The distinct difference between mold and cast fossils is that a mold represents the negative impression of the organism, while a cast represents a positive, filled-in version of the organism created from the mold. Often, molds can preserve delicate details like the veins in leaves or scales of fish.
4. A diagram of the human digestive system is shown below. Removing which organ would have the smallest impact on digestion absorption, and elimination?
(Assume the system will remain connected if a large organ is removed.)
Esophagus
Stomach
Small intestine
- Large intestine
O A Esophagus
OB. Stomach
O C. Small intestine
O D. Large intestine
Answer:
a
Explanation:
The central vacuole stores water. What would happen to the size of the central vacuole if a plant
is submerged in a high salt concentration? Explain using cell transport terminology.
Answer:
Vacuole will sooner or later disappear (depends on the salt concentartion outside the cell).
Explanation:
Hypertonic solution (impure water) contributes to higer solute concentration outside the cell (lower solvent concentration) and leads to plasmolysis that allows the movement of solvent from higher concentration to lower cncentration ( water moves outside the cell).
In plant cells, vacuole stores important nutrients and other vital products. Due to high salt concentartion outside the cell, the water will move towards lower solvent concentration (out of the cell) from the cell, the nutrients stored in vacuole will also move primarily to cytosol and then outside the cell which leads cell to wilt. Hence, the vacuole will sooner or later disappear depending on the salt concentrationoutside the cell.