Answer:
d i think, Hope this helped.
Explanation:
Answer:D
Explanation:
A scientist claims that he has protected animal test subjects from a newly mutated virus using an experimental vaccine.The experimental vaccine was injected into five animal test subjects. The scientist also injected a placebo vaccine into five other animal test subjects.One month later, all of the test subjects were exposed to the mutated virus. The subjects that received the vaccination showed no sign of the disease and blood tests confirmed the presence of antibodies against the disease, but the subjects given the placebo developed symptoms of this condition.Why did one group have a placebo injected before being exposed to the virus?A) They were part of the experimental groupB) They would be protected from the diseaseC) They would be exposed to a weaker form of the virusD) They were part of the control group
Answer:
The correct answer is option D. they were part of the control group.
Explanation:
A control group is a group of subjects different from the other test subject as they did not get the independent variable's effect on them and separated from the rest of the experiment. This group of subjects is used to rule out any other explanation of the effect of the independent variable.
In this experiment, subjects that received a placebo injection are the control group as they did not expose to the mutated virus and there are the presence of antibodies in the blood.
Can someone answer this thanks
Answer:
Plan evacuation routes to higher ground.
Answer:
The answer is 3
Explanation:
What is the function of the valves in the lymphatic vessels?
Answer:
1. pick up any fluid that has escaped the blood vessels
2. return the escaped fluid to the heart
3. remove any foreign material from the lymph
Explanation:
Lymph vessels pick up any fluid that has escaped the blood vessels and return it to the heart. Lymph nodes remove any foreign material from the lymph (bacteria, viruses, tumors) and contain lymphocytes (WBC!!!)
Each and every fluid that had already exited the blood arteries is collected by lymphatic vessels as well as returned towards the heart. Lymph nodules filter out foreign particles from either the lymph as well as house lymphocytes.
Gather each and every fluid that had already leaked from the blood vessels.Start by removing anything foreign materials from the lymphatic system.Learn more about vessels here:
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At the end of the Calvin cycle, what molecules have the energy that originally came from light?
Answer:
The Calvin cycle has two parts. First carbon dioxide is ''fixed''. Then ATP and NADPH from the light reactions provide energy to combine the fixed carbons to make sugar.
Explanation:
At the end of the Calvin cycle, ATP and NADPH are the molecules have the energy that originally came from light.
Calvin cycle reactions are referred to as light independent reactions, because they can take place in the dark, provided the products of the light reactions (ATP and NADPH) are provided.
Cells do not store large amounts of ATP and NADPH, so the Calvin cycle depends on these molecules being contributed again by light reactions.
In these reactions (each one of them catalyzed by a specific enzyme), ATP and NADPH are used up, the two final products of the transformation of light energy into chemical binding energy by the chloroplast.
The Calvin cycle uses energy-rich products of light reactions (ATP and NADPH) to incorporate three CO2 molecules (one at a time) into a three-carbon sugar phosphate.
The carbon atoms fixed in the form of sugar in the Calvin cycle eventually become the carbons of all the organic molecules present in plants, animals and almost any form of life.
Therefore, we can conclude that at the end of the Calvin cycle, ATP and NADPH are the molecules have the energy that originally came from light.
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What are some characteristics that protists and fungi both have that make them eukaryotes?
Answer:
They have a nucleus and other membrane bound organelles.
Explanation:
hoped this helped :)
The characteristics that protists and fungi both have that make them eukaryotes is the possession of a membrane bound nucleus and other organelles.
EUKARYOTES:
Eukaryotic cells are cells that possess a membrane-bound nucleus to house their genetic material (DNA). Eukaryotes also possess other membrane bound organelles like mitochondria, golgi apparatus etc. This feature particularly differentiates them from prokaryotic cells. Eukaryotic organisms include plants, animals, fungi, some protists etc. Therefore, it can be said that the possession of a membrane bound nucleus and other organelles is the characteristics that makes fungi and protists be considered eukaryotes.Learn more: https://brainly.com/question/21196976?referrer=searchResults
Complete the passage to describe the link between photosynthesis and respiration.
The reactants for cellular respiration are the ____
for photosynthesis. The products of cellular respiration are the ____
of photosynthesis.
reactants:Oxygen and glucose
products: Carbon dioxide, water, and ATP
Answer:
The first blank is products.
The second blank is reactants.
Recovering Ecosystems Worksheet Section 1: Select the Kitakami River region, the Abukuma Highlands, or Japan's coastal habitat as the ecosystem you want to help with recovery. List the main problem faced by this ecosystem as described in the lesson. Then list at least two sub-problems that need to be considered to solve the main problem. List the sub-problems in order of most to least important. In the rationale column, explain why you placed your sub-problems in the order you selected. Main Problem Sub-Problems Rationale Section 2: Conduct internet research on your selected ecosystem to help you generate a list of three criteria and two constraints. Your criteria and constraints should consider relevant factors to the problem, such as costs, reliability, safety (to humans and wildlife), human needs, environmental impact, local biodiversity, and the aesthetics of the area. List the criteria in order of most to least important and assign each to a related sub-problem. In the rationale column, explain why you placed your criteria in the order you selected. Constraints Criteria Rationale Which Sub-Problems does this criteria address? Section 3: For at least one of the sub-problems, propose two solutions based on the information from the lesson and your additional research. In the rationale column, explain how your solution restores the stability and biodiversity of your selected ecosystem. Sub-Problem Proposed Solutions Rationale Section 4: Answer the following analysis questions about your proposed solutions. Describe the ways your proposed solutions decrease the negative effects of habitat destruction and human activity on your selected ecosystem. Describe the costs, safety, and reliability of your proposed solutions, as well as any social, cultural, and environmental impacts your solutions address. Evaluate your proposed solutions for their impact on overall environmental stability and changes. Which solution has more impact? Explain your reasoning for picking one solution over another. How could you refine one of your proposed solutions to further reduce environmental impact and loss of biodiversity while also addressing human needs?
Answer:
the screen shot is the answers when you select kitakami River region
Explanation:
sorry this isn't the full answer this is all have myself at the moment.
Answer:
Explanation:
the links are images of the answers
What does oxygen do in cellular respiration?
Answer:
Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.
The end result of meiosis is:
O Four diploid cells that are genetically different
O Four haploid cells that are genetically different
O Two diploid cells that are genetically identical
O Two haploid cells that are genetically different
Answer:
Explanation:
d two haploid cells that are genetically diffrent
Food is moved through the esophagus into the stomach by
involuntary muscle contractions called?
Answer:
peristalsis
Explanation:
when food contracts down the esophagus
Answer:
peristalsis
Explanation:
Why are flowers brightly colored?
Answer:
Photosimphasis And the sun
Explanation:
Answer: Flowers are brightly colored because they are meant to attract birds, bees and other insects in order to help the plants reproduce.
Explanation:
What is the autotroph and herotroph for photosynthesis
Because most nerve cells do not typically undergo mitosis, they are generally not capable of which of the following
Answer options:
producing enzymes generating more nerve cells performing cellular respiration transporting ions against a concentration gradientAnswer:
generating more nerve cells
Explanation:
Mitosis is a type of cell division that creates new cells for growth, regeneration, and repair of tissues in an organism.
The cells produced are identical daughter cells.
However, their inability to perform cell division does not affect their ability to perform other process like enzymes, respiration, and ion transport.
10. Which respiratory condition below correctly describes what happens during pneumonia? A. The alveoli become damaged and enlarged . O B. The airways become swollen and inflamed . C. The alveoli in the lungs fill with fluid. D. The airways restrict in response to an invader.
Answer:
the alveoli in the lungs fill with fluid
PLEASE HELP ME!!!! :)
What similarities and differences do you notice among the two types of metabolic reactions (dehydration synthesis & hydrolysis)?
Answer:
In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.
Explanation:
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what is meant by locomotor skill
Answer:
Body moving from one place to another in a vertical plane. Develop bodily control. Walking, running, leaping, jumping, hopping, galloping, sliding, & skipping.
Explanation:
Where is the chemical energy stored in ATP?
o In the chemical bonds between the first and second phosphate
o In the chemical bonds between the second and third phosphate
o In the chemical bonds between adenine and ribose
o ATP does not store energy
Help is appreciated! Thanks in advance! Will give 100 points!
Answer:
o In the chemical bonds between adenine and ribose
Explanation:
this is correct!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Which of the following is found in animal cells, but not plant cells?
lysosome
vacuole
mitochondria
endoplasmic reticulum
What is a direct effect of climate on soil formation?
A. rate of soil formation
B. type of soil formed
C. amount of soil erosion
D. amount of organic matter in soil
Climate is defined as the particular average pattern of the weather for several years. The climate is primarily affected by mountains, elevation, ocean currents, and latitude.
The effect of climate on soil formation will be:
Option B: type of soil formed
Soil is defined as the mixture of organic matter, gases, minerals, inorganic salts, and liquids that support life and cover the land.
Soil is primarily formed from weathering and erosion processes. The climate is one of the factors that affect soil development.
Climate affects soil development indirectly and also influences organisms. The high temperature and precipitation increase the rate of weathering and erosion. Thus, it leads to the development of soil.
Also, the heavy rainfall causes leaching, movement of clay particles, and increment in the organic matter also leads to the extent of soil formation.
Therefore, the correct answer is Option B.
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Answer: The correct answer is A. rate of soil formation
Explanation: This answer has been confirmed correct.
Climate determines how much soil forms and how quickly (the rate).
DNA is to T as RNA is to ?
Answer:
U (Uracil)
Explanation:
DNA is to Thymine
RNA is to Uracil
Select the correct answer.
Kelvin's cow is showing signs of poor health. The cow is staying away from the herd and is not alert in its environment. The veterinarian believes that the cow is affected by
some type of infection. He also states that the lack of white blood cells in the cow is making it less resistant to the infection. Which system of Kelvin's cow is not functioning
properly?
А. muscular system
B. endocrine system
C. nervous system
D. circulatory system
Answer:
Circulatory system.....
which of the following is not a difference between DNA and RNA ?
Group of answer choices
they have different phosphate groups in their backbones
They have different sugars in their backbones
DNA is a double strand and RNA is a single strand
RNA replaces thymine with uricel
Answer:
I believe the answer is:
They both have different phosphate groups in their backbones
Option A is correct. DNA and RNA have the same phosphate groups in their backbones.
DNA is deoxyribonucleic acid. DNA contains deoxyribose sugar. DNA is usually found in double strands. In DNA thymine is present.
RNA is ribonucleic acid. RNA contains ribose sugar. RNA is usually found in single strands. In RNA thymine is replaced by Uracil.
Nucleic acid is made up of phosphate group, ribose sugar, and nitrogenous bases.
Hence, options B, C, and D are incorrect.
Therefore, Option A is correct. DNA and RNA have the same phosphate groups in their backbones.
To know more about DNA,
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Which statement illustrates bias in scientific research?(1 point)
A. A microbiologist publishes data funded by the National Institutes of Health that does not support their original hypothesis.
B. A botanist publishes data about plant growth that does not support their original hypothesis and is replicable.
C. An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.
D. A zoologist publishes incomplete data on sloths which supports their original hypothesis and notes that more research is required.
Answer:
D
Explanation:
The statement that illustrates bias in scientific research is an ecologist publishes data funded by a construction company that supports their original hypothesis that endangered animal's territory is not endangered (option C)
In scientific research, bias can occur when the results or processes are manipulated on purpose. This usually occurs if:
The researcher wants the hypothesis to match the resultsThe researcher or sponsor has an economic interestScientific research occurs in situation B because it is convenient for the construction company to show that endangered animal's territory is not endangered as this would allow the company to build in certain areas and therefore, they are likely to manipulate the results of this research.
According to this, option B shows scientific bias. On the other hand, other options do not show bias because in these the results do not seem to be manipulated.
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a cell is placed in solution which has the same solute concentration as the inside of the cell isotonic. because the concentration is the same on both sides of the membrane which direction will the water move via osmosis
Answer:
If a cell is in a medium with the same concentration of solutes with respect to intracellular space —isotonic— there will be no movement of water because there is no osmotic gradient or osmosis.
Explanation:
Osmosis implies the passage of water through a semi-permeable membrane from a place with a lower concentration of solutes to one where the concentration of solutes is higher. This difference in solutes concentration on both sides of the membrane produces an osmotic gradient, where the water will move towards the space with the highest concentration of solutes.
If a cell is in an isotonic medium —the same concentration of solutes inside and outside the cell— there is an equilibrium and the osmotic gradient is non-existent, so there is no movement of water or osmosis.
how does the temperature change with altitude in the troposphere?
Answer:
The troposphere is heated from the ground, so temperature decreases with altitude. Because warm air rises and cool air sinks, the troposphere is unstable. In the stratosphere, temperature increases with altitude.
Explanation:
why would the green part of a variegated test positive when treated with iodine solution?
Which chemical is released by 2
WBC's that produces a non-specific inflammatory response?
Answer:
inflammatory cytokines
Explanation:
In host cellular defense systems, non-specific immune responses are integral. It is a general white blood cell-mediated reaction where cells respond quickly to pathogenic infiltration.
Here, receptors on cells detect or even respond to signals from damaged, injured or stressed cells- these signals, such as inflammatory cytokines in a cytokine storm of molecules, in response to signatures shared by a wide range of pathogens.
what are two major roles that protists play in aquatic food chains
Answer:
Explanation:
Photosynthetic protists serve as producers of nutrition for other organisms.
Protists like zooxanthellae have a symbiotic relationship with coral reefs; the protists act as a food source for coral and the coral provides shelter and compounds for photosynthesis for the protists.
2. How are the kelp and the chemosynthetic bacteria of the
hydrothermal vents similar?
A. Both use energy from the sun to make food.
B. Both are primary producers.
C. Both are scavengers.
D. Both use hydrogen sulfide as an energy source.
Answer:
C. Both are primary producers.(THIS IS THE CORRECT ANSWER)
Explanation:
Chemosynthesis is a biological conversion of carbon molecules. These are found around the hydrothermal vents.
It is due to the bacteria feeds on the hydrogen sulfide that is coming out from the vents that are required as an energy tonic for the bacteria to survive and kelp also has similar requirements. Kelps forests are shelters for these bacteria and hence both are found near the source of energy.Hence the option B both are primary producers.
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Anatomy: I need help!! If you know the answer pls let me know!! It would be greatly appreciated
Answer:i'm pretty sure its C: into cells
Explanation: