Answer:
Scientific knowledgedevelops through making observations about the natural world. Anobservation may generate a scientificquestion, which may lead to a hypothesis. The hypothesis can be tested through experimentation. The results of experimentation lead to changes in scientific knowledge.
The growth of a plant toward light is an example of _____.
adaptation
response
homeostasis
metabolism
Answer: The correct asnwer is response
Use the passage to answer the question: What kind of relationship can be found between the clams and the shrimp?
Captionless Image
Question 5 options:
parasitism
predation
competition
commensalism
mutualism
Answer:
mutualism
Explanation:
Which activities are included in the management of water resources? Check all that apply.
planning how to transport water
using technology to purify water
studying the composition of water
building structures to store water
determining the selling price of water
Answer:
Well, Your best answer will be is Planning how to transport water, Using technology to purify water, And Building structures to store water. Good Luck!
The activities included in the management of the water resources are:
transportpurificationstorage What does water resources management mean?The expression "water resources management" indicates the activities aimed at handling water for consumption.
The management of the water resources is a fundamental issue to control the quality of water.The management of water is also crucial for achieving acceptable levels of this element.In conclusion, the activities included in the management of water resources are planning how to transport water, using technology to purify water and building structures to store water.
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Which of these fields of scientific study involves investigating the physical
processes that occur within Earth?
O
A. Geophysics
O
B. Meteorology
O
c. Geography
O
D. Biology
Final answer:
Option A. Geophysics is the field of study that investigates the physical processes within Earth, using principles of physics to study the planet's interior and phenomena such as seismic waves and magnetic fields.
Explanation:
The field of scientific study that involves investigating the physical processes that occur within Earth is Geophysics. This field applies principles of physics to study the Earth's interior and includes the investigation of seismic waves, magnetic fields, and gravity. Geophysics is a branch of earth science alongside others, such as geomorphology, oceanography, and climatology, which fall under the broader category of geography. Other branches of science include physiology, which is the study of the function of an animal's or a plant's body, and agriculture, which deals with the cultivation of plants and raising animals for food, fiber, and other products.
All of these are reasons why viruses make good carriers for gene therapy,except
A)viruses are very good at targeting specific cells
B)viruses already have the methods to bypass the host immune system
C) viruses naturally have all the tools they need to get into a cell and replicate its genes
D)viruses will kill the cells affected by the disease by taking over the cell process to replicate more viral particles
Answer:
C
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In this lesson, you learned about an analogy between parts of our society and some organelles. Now, your job is to come up with an analogy between organelles and a school. Be sure your analogy contains a comparison between four organelles and four parts of a school. Additionally, your response should include an explanation as to why the analogy works for that particular organelle. The analogy has been started for you below.
In comparing a school to a cell, the main office would be like nucleus because this is where the information is stored and it functions as a "control center" for the school.
1. Membrane, maybe a fence around your school or the walls as it is physical barrier between the cells internal environment and the outside.
2. Chloroplast, cafeteria, it generates food for the cell.
3. Rough endoplasmic reticulum, corridors, it transports proteins.
4. Lysosome, trash can, gets rid of old parts of the cell
Wild hogs introduced to Texas from Europe became feral after the
hogs escaped from the ranches where they lived. Feral hogs are omnivores
that feed on native plants, crops, and small animals. Feral hogs can damage
an ecosystem by rooting through the soil to look for food and trampling
small plants. Which types of native organisms do feral hogs most likely
compete with for food sources?
Mark only one oval.
1)Carnivores and producers
2)Herbivores and carnivores
3)Producers and decomposers
4)Decomposers and herbivores
Answer:
2)Herbivores and carnivores
Explanation:
Because it feeds on small animals and plants.
Answer:
2) Herbivores and carnivores
Explanation:
Feral hogs are omnivores that feed on a variety of sources including native plants, crops, and small animals. Therefore, they compete with both herbivores and carnivores for food sources.Feral hogs can cause significant damage to an ecosystem by rooting through the soil and trampling small plants. They can also disturb the soil and contribute to erosion. Feral hogs have become a major problem in many parts of the United States, including Texas.
Really late
How do animals and plants depend on one another and on nonliving things in a tropical rainforest ecosystem?
Answer:
By consuming
Explanation:
When something is eaten, it sends energy to the other organism
Which is NOT something shown in the diagram below?
A. convection
B. a local wind
C. a land breeze
D. a region of high pressure
Answer:
C
Explanation:
Which of the following accurately describes a cause for a change in blood flow?
•Consistent exercise strengthen the heart so that it doesn't have to work as hard so blood pressure is
increased.
•The walls of blood vessels lose elasticity causing resistance which increases blood pressure.
•A disease causes an increases blood viscosity which in turn increase the speed of blood flow.
•An accident causes excessive bleeding that leads to a decrease in blood fluid volume and high blood
pressure.
Answer: B The walls of blood vessels lose elasticity
Explanation: This usually happens with arthrosclerosis.
Final answer:
Several factors can cause a change in blood flow, including consistent exercise, loss of elasticity in blood vessel walls, increased blood viscosity due to disease, and excessive bleeding.
Explanation:
Blood flow is the movement of blood through a vessel, tissue, or organ. The slowing or blocking of blood flow is called resistance. Blood pressure is the force that blood exerts upon the walls of the blood vessels or chambers of the heart. There are several factors that can cause a change in blood flow. For example, consistent exercise can strengthen the heart so that it doesn't have to work as hard, resulting in increased blood pressure. The walls of blood vessels losing elasticity can cause resistance and increase blood pressure. A disease can cause an increase in blood viscosity, which in turn increases the speed of blood flow. Lastly, an accident causing excessive bleeding can lead to a decrease in blood fluid volume and high blood pressure.
DNA codes for _______ which determines ________
(a) proteins, peptide bonds
(b) mRNA, tRNA
(c) mRNA, ribosome
(d) protein s, traits
DNA carries genetic information in nucleotidic sequences. This information is translated into proteins that codes for traits. Option D. Proteins - Traits.
What DNA codes for?DNA molecules carry genetic information stored in their nucleotidic sequences. This molecule has information about the whole organism and its functions.
Through protein synthesis, this information is first transcripted into mRNA molecule and then translated into proteins.
mRNA is in charge of taking only sequences that code for a single protein from the nucleus to the cytoplasm, where rRNA and tRNA will build the protein.
What are proteins and what is their function?
Proteins are complex macromolecules formed by a sequence of amino acids. They carry out several functions in the organisms.
They are in charge of most cellular activities and are necessary for the structure, function, and regulation of tissues and organs.
Proteins are in charge of determining traits or features that will be expressed by the individual through its development.
The correct option is D. DNA codes for _proteins_ which determines _traits_.
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Final answer:
DNA codes for proteins which in turn determine traits, with the sequence of amino acids in a protein being critical to its function. The process involves transcription and translation with mRNA and tRNA playing key roles.
Explanation:
DNA codes for proteins which determines traits. The process begins with transcription, where DNA's nucleotide sequence is copied into messenger RNA (mRNA). This mRNA then provides the code for the sequence of amino acids in a protein during translation. Proteins are comprised of long chains of amino acids linked together by peptide bonds. The specific sequence of amino acids in a protein dictates its structure and function. Transfer RNA (tRNA) carries amino acids to the ribosome, where they are added to the growing protein chain as dictated by the mRNA sequence.
The correct answer to the question is therefore (d) proteins, traits. Proteins are responsible for carrying out a vast array of functions in cells and organisms, and the traits of an organism can be influenced by the types and functions of the proteins produced as a result of gene expression.
Describe the relationship between the sickle cell phenotype and hemoglobins structure and function.
Answer:
It would be harder for the hemoglobin to move oxygen throughout the body because of how sickle cell looks/ its structure.
Sickle cell is a red blood cell but looks like a hook (in my opinion) while red blood cells are typically round, making them easier to transport in veins. due to the shape, it is harder for the blood to be transported.
Explanation:
Which of these provides evidence from developmental blology of a shared evolutionary history?
a. the dna sequences of the cytochrome c genes in chimpanzees and spider monkeys are over 90% identical
b. the skeletal structure of a leg of a horse and a flipper of a whale are very similar
c. both snakes and dogs have pelvical bones even though they are vestigial structures of the snake
d. both lobsters and frogs go through metamorphosis as a process in their life cycle
Answer:
b
Explanation:
The evidence from developmental blology of a shared evolutionary history is both snakes and dogs have pelvical bones even though they are vestigial structures of the snake and the correct option is option C.
Snakes and dogs belong to different evolutionary lineages, yet both possess pelvical bones, which are vestigial structures in snakes. The presence of these bones in both species suggests a shared ancestry and evolutionary history.
This indicates that their ancestors once had functional pelvic structures, but over time, snakes lost the need for them and they became reduced and non-functional.
The presence of vestigial structures in different species indicates a common ancestor with a shared developmental pathway, supporting the idea of shared evolutionary history.
Thus, the ideal selection is option C.
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The chloroplast functions in
lipid storage
protein synthesis
photosynthesis
DNA replication
Answer:
photosynthesis
Explanation:
chloroplasts has chlorophyll is essential for photosynthesis the process in which plants make food
Which element or elements in the periodic table are most similar to the reactivity to chlorine
1-Paragraph that explains an example of natural selection . (3-5 sentences)
Answer:
In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.
Answer:Natural selection is the process in nature by which organisms better adapted to their environment tend to survive and reproduce more than those less adapted to their environment.For example, tree frogs are sometimes eaten by snakes and birds. Gray Tree frogs blend well in dark wooded areas on tree bark and Green Tree frogs blend in well with green vegetation found in marshes and swamps. A Green Tree frog on the bark of a tree is easier for a predator to find, compared to a Green Tree frog on a green leaf. So, Green Tree frogs that go into habitats where they are not camouflaged are more likely to be eaten by predators. Since Tree frogs that have been eaten do not live to have any more baby Tree frogs, natural selection has favored Tree frogs that live in habitats in which they are more camouflaged.
Two spotted leopards produce a litter of four cubs. Three of the cubs are spotted and one is solid black. The black coat is probably what type of trait? *
Two spotted leopards produce a litter of four cubs. Three of the cubs are spotted and one is solid black. The black coat is Recessive Trait
Explanation:
A recessive trait is a trait that have been expressed when an organism has two recessive alleles or two forms of a gene.
Traits are called the physical/non-physical characteristics of a organisms that can or cannot be observed.
Physical characteristics like hair, eye color can be observed while other characteristics like the shape of blood cells cannot be observed.
It is important to note that if the trait is dominant, one of the parents will have the trait. Dominant traits does not skip a generation. In case the trait is recessive, neither of the parent will have the trait .Recessive trait can skip a generation
So we can say that in the case mentioned in the question
Two spotted leopards produce a litter of four cubs. Three of the cubs are spotted and one is solid black. The black coat is Recessive Trait
Final answer:
In a litter of four cubs where three are spotted and one is solid black, the solid black coat is likely a recessive trait, since the spotted pattern is exhibited by the majority and is thus the dominant trait.
Explanation:
The question addresses a scenario where two spotted leopards produce a litter of four cubs, three of which are spotted, and one is solid black. Since the majority of the cubs are spotted, this suggests that the spotted pattern is the dominant trait. The solid black coat in one cub is therefore likely to be a recessive trait. In genetics, a dominant trait is one that is expressed in the phenotype even if only one copy of the allele for that trait is present (heterozygous). On the other hand, a recessive trait requires two copies of the allele (homozygous recessive) to be expressed.
Given the context, and consistent with information about cat coat genetics, the solid black color exhibited by the single cub can follow principles of incomplete dominance, co-dominance, or be influenced by multiple genes or loci, which is a more complex topic involving epistatic interactions. The most straightforward answer is that the black coat is a recessive trait when considering the simple Mendelian inheritance patterns observed in the litter.
The Earth is populated mostly by unicellular organisms, such as bacteria. However, there are many multicellular organisms as wel
Which of the following is a multicellular organism?
A
flower
B
human
C
all of these
Answer:
all of these
Explanation:
A flower, a human, and an insect are all examples of multicellular organisms, so the correct answer is all of these.
15 POINTS Imagine that you are playing in a basketball game. Write 3-5 sentences
describing different forces observed during the game. Remember, any time an
object's motion changes, there must be some kind of force acting on it.
Answer:
A friction force occurs in the shoes that are played and the floor of the court.When the ball spins, a centripetal force occurs that prevents the ball from moving away from the center of its rectilinear motion. The weight force allows the ball to fall back to the ground because without it it would be suspended in the air, it would not bounce, which would make basketball an impossible game.___________________________________, and _______________________________ are a few other terms that are also often used to refer to plant biotechnology.
(Please hurry)
Answer:
Explanation:
tissue culture and mutational breeding
Some people have one sickle cell gene and one normal gene. They have few defective cells and no symptoms because the sickle cell gene is recessive. How does the human system of reproduction result in people getting one copy of a sickle cell gene and one copy of a normal gene? Describe the process.
Answer:
Explanation:During fertilization the embryo receives half of its genetic information from both parents. If one parent is a carrier or sickle cell their genes would be Aa little a being the recessive gene. When mixed with the other parents gene who does not have sickle cell their genes would be AA. When you make a pun net square the results would be AA,AA,Aa,and Aa. Therefore the offspring would have a 50% chance of being a carrier of sickle cell but not having the actual disease
The D string on a violin has a frequency of 293 Hz when it is in tune. Calculate the period.
Answer:
Answer:The Time (period) is 0.003 s
Step-by-step explanation:
The period is equal to Time.
the formula for calculating Time (period) is:
Time (period)= 1/frequency
frequency= 293 hz
Time (period) = 1/293
= 0.003
If The D string on a violin has a frequency of 293 Hz when it is in tune, its period is equal to 0.003 s.
What is period?The period is the length of time required to finish a circuit. The inverse of this, or the amount of cycles in a second, is frequency. The wavelength is the distance that sound moves in one period.
Time is equivalent to the period.
Time (period) is calculated using the following formula:
Period (time) Equals 1/frequency
Frequency=293 hertz
Period (time) Equals 1/293
= 0.003 s
As an illustration, if a newborn baby's heart pulses 120 times per minute, its period—the space between beats—is half a second 60 seconds divided by 120 beats.
Therefore, the period is the reciprocal of the frequency because it is the length of time for one cycle in a repeating occurrence.
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When calculating population growth
and reproductive potential, which will
make the biggest impact?
A. The organism's mass
B. How soon the organism is able to reproduce
C. How often the animal is able to reproduce
D. How many offspring it produces
10/31
Answer:
B. How soon the organism is able to reproduce.
ANSWER ASAP PLZ!!!
What is the end result of using a technique known as polymerase chain reaction
is it B,C, OR D???
The answer is C; Many copies of a DNA Fragment
The specific DNA sequence has been doubled. This cycle of Denature-Anneal-Extend is repeated, usually about 35 times, by using a thermocycler over 2-3 hours (the "chain reaction" of PCR). This produces 34,359,738,368 copies of DNA (That's 2^35)!
PCR is a technique used which is used to amplify DNA so, many copies of a DNA fragment will get as a end result of using PCR.
What is DNA?DNA stands for deoxyribose nucleic acid.It is a self-replicating substance that makes up the majority of chromosomes in practically all living creatures. It carries genetic information of living beings.What is PCR polymerase chain reaction?Kary B. Mullis, an American scientist, invented PCR in 1983.The polymerase chain reaction (PCR) is a laboratory technique used for rapidly amplifying millions to billions of copies of a single DNA region.PCR entails selecting a portion of the genome to be amplified using short synthetic DNA fragments called primers, followed by several rounds of DNA synthesis to amplify that segment.Amplification is accomplished by a three-step process:-Denaturation is the process of heating double-stranded DNA templates to separate the strands at 95°C.Annealing is the process of short DNA molecules called primers binding to flanking regions of target DNA at 55°C.Extension is the process of DNA polymerase extending the 3′ end of each primer along the template strands at 72°C.These processes are performed 25–35 times to make precise copies of the target DNA exponentially.
Hence, the correct option is D.
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How does the body’s response to endocrine regulation differ from its response to nervous regulation?
Answer:
.
Explanation:
Endocrine system uses chemical signaling (slow)
Nervous system uses electrical signaling (fasr)
Asexual reproduction involves...
A) two parents and results in offspring that are different from both parents.
B) only one parent and results in offspring that are very different from the parent.
C)only one parent and results in offspring that are identical to the parent.
D)two parents and results in offspring that are identical to one parent.
Answer:
c
Explanation:
C)only one parent and results in offspring that are identical to the parent.
Final answer:
Asexual reproduction involves a single parent and produces offspring that are genetically identical to the parent, through processes like binary fission.
Explanation:
Asexual reproduction involves a single parent. It results in offspring that are genetically identical to each other and to the parent. This form of reproduction can occur in various organisms, including all prokaryotes and some eukaryotes. Different methods of asexual reproduction include binary fission, fragmentation, and budding, with binary fission being a process where a parent cell splits into two identical daughter cells.
Therefore, the answer to the student's question is C) only one parent and results in offspring that are identical to the parent.
A field study on tomato growth has two groups. One receives fertilizer A, and one receives no added
fertilizer. Each group has ten tomato plants. The researchers set up five plots, each with the same planting
positions and same numbers per group.
What is the sample size in this study?
DONE
How many replications of the study are done?
DONE
When doing final statistics on the study, how many tomato plants can be analyzed for each group?
DONE
Answer: 10, 5, 50
Explanation:
The sample size in this study is 20 (10 tomato plants in the group receiving fertilizer A and 10 in the group without added fertilizer).
Five replications of the study are done.
For final statistics, a total of 20 tomato plants can be analyzed for each group.
In this field study on tomato growth, we have two groups: one receiving fertilizer A and another receiving no added fertilizer. Each group consists of ten tomato plants.
Sample Size:
The total number of tomato plants in both groups is
10+10=20. Therefore, the sample size in this study is 20.
Replications:
The researchers set up five plots, each with the same planting positions and the same number of plants per group.
Each plot represents a replication of the study.
Plants Analyzed for Each Group during Final Statistics:
For each group, there are a total of ten tomato plants.
Therefore, during final statistics, ten tomato plants can be analyzed for each group.
In summary, the sample size is 20 (representing the total number of tomato plants), there are five replications of the study (each in a different plot), and for final statistics, ten tomato plants from each group (fertilizer A and no added fertilizer) can be analyzed.
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HELP!!! BRAINLIEST GETS 45+ POINTS!!!!!
identify the advantages and disadvantages for both fossil fuels and nuclear fuels
Fossil Fuels
Advantages: Large amounts of fairly cheap electricity can be generated in one place. Transporting it to power stations and plants is easy. Easy to find.
Disadvantages: Major pollution, the plants that use fossil fuels let out lots of carbon dioxide, which contributes to the greenhouse effect. They also produce sulfur dioxide, a gas that contributes to acid rain. Mining coal can be very dangerous. Coal power plants require lots of coal to run.
Nuclear Fuels
Advantages: No greenhouse gases. The energy obtained in these plants is 10 million times more powerful than the same amount made in a coal plant. This type of energy is also reliable and rarely shuts down due to outside causes.
Disadvantages: Very harmful waste. Supplies will run out in years to come. It takes days to shut down a plant. Meltdowns expose very large amounts of radioactivity in an area.
Answer:
Alright so:
Explanation:
Advantages of fossil fuels: cheap, easy access, give a ton of concentrated energy, easier to transport from place to place, very stable and very reliable.
advantages of nuclear fuels: they are also cheap, also easy to get access, are cleaner, are safer, and less pollution.
Disadvantages of fossil fuels: they contribute to global warming, lots of pollution, dirty, extremely dangerous if an accident is made, the process of drilling for fossil fuels is also very dangerous and it is nonrenewable.
Disadvantages of nuclear fuels: radioactive waste, pollute the environment as well, dangerous if accidents happen, nonrenewable, expensive, limited supply, and it takes a long time before it can be transported.
1. (3 pts) On June 6 at approximately 1 pm, Mrs. Smith, Mrs. Stevenson and Mrs. Jones each
delivered a healthy baby boy at Metropolitan General Hospital. At 1:20 pm the hospital's
fire alarm sounded. Nurses and orderlies scrambled to evacuate patients and the three
babies were rushed to safety. After the danger had passed, the hospital staff was distressed
to find that in the confusion, they had forgotten which baby was which! Since the babies
were rescued before receiving their identification bracelets, there was no easy way to
identify them. Dr. Robinson, head of pediatrics, ordered that DNA profiles be preformed
on the babies and their parents. Your job is to determine which baby belongs to which
parent
Identify the parents of
&
Baby 1:
Stevenson
b. Baby 2: _
Jones
c. Baby 3:
Smith
Fragment
DO
To determine which baby belongs to which parents in the hospital mix-up scenario, DNA fingerprints of the babies and their parents are compared to find genetic markers that confirm biological relationships. The child must share DNA markers with both parents, and the DNA analysis is used to match these genetic profiles.
Explanation:The question revolves around a scenario where three children were delivered at the same time in a hospital, and due to an emergency, their identities got mixed up. To determine which baby belongs to which parents, DNA profiles of the babies and their parents were compared to establish biological relationships based on genetic markers. By examining the DNA fingerprints of the babies and comparing them to those of the parents, the child's parents can be ascertained. The child must share genetic markers with its parents, as children inherit half of their DNA from the mother and half from the father. During a DNA analysis, specific regions of the DNA are analyzed to detect similarities that are unique to family members.
When dealing with paternity or maternity testing, a match in these genetic markers must be found between the child and the alleged parents to confirm a biological relationship. Modern forensic science often uses this approach to resolve cases of uncertain paternity or identify individuals in scenarios like the hospital mix-up described. DNA analysis is a powerful tool in maternity and paternity testing, used not only for medical and legal cases but also for research purposes.
What part of a flower forms a fruit?
a.Stamen
b.Anther
c.Stigma
d.Ovary
Answer:
d.Ovary
Explanation:
The part of the stamen where pollen is produced. Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed.