what is the structure of dna
Answers
Hope this helps!!!!!
Related Questions
why it is so important for the body to be protected against viral pathogens?
Answers
Answer:
Certain viral pathogens can lead to death. Viruses like Human Immunodeficiency Viruses (HIV) are not considered lethal on their own but lower your body's ability to fight infections, and over time cause Acquired Immunodeficiency Syndrome (AIDS). If infected by this virus you could be killed by the common cold. That is why it is important to be protected against viral pathogens.
Explanation:
What does the thin material that holds the tea leaves represent
Answers
Answer:
It represents a partially permeable membrane
Explanation:
As the water is added to the teabag it causes the tea leaves to move and triggers diffusion of the leaves. ...
Please give the correct answer
Answers
In this lab, the only test that turned out positive was for
Answers
Answer:
lipids
Explanation:
edge2021
Answer:
lipids.
Explanation:
Which material maintains the digestive environment in the
stomach?
a strong bases
b weak bases
C strong acids
d weak acids
Answers
c. strong acids
Which best describes how food availability affects the carrying capacity of an area?
A . as food availability increases, the carrying capacity increases in aquatic food webs only.
B. as food availability increases, carrying capacity increases in all ecosystem.
C. as food availability increases, the carrying capacity decreases in terrestrial food webs only.
D. as food availability increases, carrying capacity decreases in all ecosystem.
Answers
Answer:
I believe your answer would be "B"
Explanation:
If the food supply increases for a spider, they will reproduce faster, creating more food for the next animal in the food chain, and then that animal will reproduce faster, creating more food for the next animal, and so on! This would create more room for more animals because they can reproduce faster and create more all together.
Have a blessed day, please mark BRAINLIEST if correct! :D
The statement that best describes how food availability affects the carrying capacity of an area is as food availability increases, carrying capacity increases in all ecosystems. Thus, the correct option is B.
What is Carrying capacity?Carrying capacity may be defined as the maximum number of individuals that can live in an ecosystem without undergoing competition.
The increase in food availability gives the organisms the energy for survival and reproduction through which they can produce their offspring in the natural environment.
Almost all types of ecosystems favor food availability when it talks to increasing carrying capacity. Because the fact behind this concept remains the same for all ecosystems.
Therefore, the correct option for this question is B.
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Which group of organisms evolved first?
Select one:
a.
fish
b.
reptiles
c.
amphibians
d.
mammals
Answers
Answer: c or a because they are water animals
Explanation:
Answer:
A - Fish; (took the test)
Explanation:
Fish evolved in the world's oceans more than 100 million years before reptiles, amphibians, or mammals
Eknwnwnenenenenebrbrbrbrbbrbrbrbrbebrbrbbebebebwbebebebebebw
Answers
The answer is:
b
step by step
when the body removes carbon dioxide bu the way of respiratory system what happens to the ph of blood
Answers
the more carbon dioxide in the blood the more acidic it will be. so when it is removed the acidity will decrease.
so the pH increases
When the body removes carbon dioxide, the PH of blood increases
The body control the blood's acid-base balance through different ways. The organs used for this control is lung, kidney and buffer systems.
The lung can control blood pH through the release of carbon dioxide. Carbon dioxide acidic and its accumulation in the body leads to an increase in PH.
When the blood PH is too low (i.e. acidic), the body increases breathing so as to expel(remove) more carbon dioxide thereby increasing the PH of the blood.
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PLEASE HELP
Describe the ten percent rule, and explain what percentage of energy a dolphin would have after it ate a fish, that ate an insect, that ate some grass.
Answers
Answer:
The ten percent rule, also known as the law of ecological tithe, has to do with the effective transfer of energy that occurs at different trophic levels, corresponding to the use of one tenth of the energy from the immediate previous level.
Explanation:
The 10 percent rule was established by the english naturalist Charles Sutherland Elton, indicating that the transfer of energy from one trophic level to another is only 10 percent. This means that the level immediately above can only use one tenth of the energy produced by the level before it.
What percentage of energy a dolphin would have after it ate a fish, that ate an insect, that ate some grass?For example, if we say that grass produces 10000 Kcal, the insect that consumes it (primary consumer) will be able to use 1000 Kcal, the fish that consumes insects 100 Kcal and the dolphin that consumes the fish only 100 Kcal.
Grass → Insect → Fish → Dolphin
10000 1000 100 10
In the end the dolphin, a tertiary consumer, will only be able to produce 10 Kcal, when in the food web the producer had 10,000 Kcal.
The 10 percent rule is not entirely accurate, since the effective transfer can be less or more than 10 percent. However, in most cases, the average energy transfer is around 10%, which complies with the rule.
Which describes a way in which phosphorus may enter into the phosphorus cycle?
Earthquakes release phosphorus.
Phosphorus is carried in the rain that was evaporated from lakes.
Human use of fertilizers release phosphorus into the groundwater.
Phosphorus is transpired from the leaves of plants.
Answers
Answer:
Your answer would be C.) Human use of fertilizers release phosphorus into the groundwater.
Explanation:
Edge2021
The statement that best describes a way in which phosphorus may enter into the phosphorus cycle is as follows: Human use of fertilizers release phosphorus into the groundwater (option C).
How is phosphorus released into the atmosphere?Phosphorus is a micronutrient needed by living organisms in the biosphere. It is also a vital component of the nucleic acid in living organisms.
The phosphorus cycle is the cyclic movement of phosphorus through the biogeochemical environment.
The way in which phosphorus is released into the phosphorus cycle is through anthropogenic activities i.e. the use of phosphorus-containing fertilizers.
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A researcher noticed that a similar CH2 molecular structure was also located in the plasma membrane of an animal cell. This CH2 molecular structure contained a negatively charged phosphate group. Which statement BEST describes the primary function of the CH2 and phosphate molecular structure located in the plasma membrane?
A. It contains the genetic information needed for protein production.
B. It catalyzes specific chemical reactions in the cytoplasm of a cell.
C. It stores the energy that a cell needs to perform various life processes.
D. It allows a cell to regulate the movement of materials into and out of a cell.
Answers
Answer:
it allows a cell to regulate the movement of materials into and out of a cell.
Answer:
D. It allows a cell to regulate the movement of materials into and out of a cell.
Explanation:
I got it right on my test.
Select the correct answer.
Laura wants to import frozen red meat from Canada for her restaurant. However, the US government denied the import of frozen red meat
from Canada as it did not follow grades for trading terms for quality standards in food and processed food products. Which US regulatory
authority must have imposed a ban on these imports?
A.
the US Food and Drug Administration (FDA)
B.
National Shellfish Sanitation Program
C. food safety and nutrition
D.
US Department of Agriculture (USDA)
Reset
Next
Answers
Answer:
US Department of Agriculture (USDA)
Explanation:
plato :)
The US regulatory authority must have imposed a ban on these imports is the US Department of Agriculture (USDA). The correct option is D.
What is USDA?USDA is the US Department of Agriculture, is a department of health and agricultural food of the US. They check the quality of food material that is provided to the citizens, and they also improve the quality of the food and by using new techniques. To make the food more nutritional and less harmful, they improve the quality.
The checking of meat and all non-vegetarian products are comes under this department. They check the quality of the meat and all beef, and eggs. They saw if the meat is good for importing or not.
Laura wants to import frozen red meat for her restaurant. But the quality of meat was not good to feed the citizens that why the authority will stop it and the authority is US Department of Agriculture (USDA).
Thus, the correct option is D. US Department of Agriculture (USDA).
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only plutonium and botulism toxin are more deadly than what
Answers
Answer:
As of 2003, there has yet to be a single human death officially attributed to plutonium exposure. Naturally-occurring radium is about 200 times more radiotoxic than plutonium, and some organic toxins like Botulism toxin are billions of times more toxic than plutonium.
PLEASE HELP I DONT UNDERSTAND
How does having genes on many chromosomes, rather than on just one chromosome, increase genetic variation among offspring?
Answers
Answer:
Genetic variation is increased by meiosis
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. ... A gamete will end up with 23 chromosomes after meiosis, but independent assortment means that each gamete will have 1 of many different combinations of chromosomes
Explanation:
Due to the possibility of genetic material being recombined and shuffled during meiosis, having genes on several chromosomes as opposed to only one chromosome enhances genetic variety among kids.
What is genetic variation among offspring?At locations known as chiasma, the chromosomes overlap. The chromosomes split and reunite at each chiasma, exchanging part of their genes in the process. Genetic diversity comes from this recombination.
The chromosomes align in pairs and cross over during the meiotic process to exchange genetic material. This process results in novel gene pairings on the chromosomes, which can result in the birth of kids with distinctive combinations of features.
Therefore, the possibility of genetic material being recombined and shuffled during meiosis increases genetic variation among offspring.
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A prokaryotic cell is...
A. A cell that does not contain DNA
B. A cell that has multiple organelles
C. A cell that does not contain a nucleus
D. A cell found in plants, animals, fungi, etc.
Answers
Answer: A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid
HOPE THIS HELPS
Which type of feather gives the bird its color?
Select one:
a.
contour
b.
down
c.
flight
d.
barb
Answers
Answer:
d
Explanation:
Answer:
a.contour
Explanation:
Based on the results of this study, what questions remain unanswered? How can these questions guide future research?
Answers
Answer: One of the biggest questions is, Can we replicate these results in other plants? So, there needs to be more research to determine whether this technique is effective in food crops. It’s not known what the protein PsbS does, even though it seemed to enhance plant growth. There should definitely be more research to find out how this protein is linked to plant growth and whether boosting this protein will affect growth in other types of plants. The researchers also noted that there are numerous other ways to make photosynthesis, and there are more than 100 chemical reactions involved in the process. Investigating other possibilities might be the key to improving crop yield in a wide variety of crops.
Explanation: same answer from edmentum.
Answer:
One of the biggest questions is, Can we replicate these results in other plants? So, there needs to be more research to determine whether this technique is effective in food crops. It’s not known what the protein PsbS does, even though it seemed to enhance plant growth. There should definitely be more research to find out how this protein is linked to plant growth and whether boosting this protein will affect growth in other types of plants. The researchers also noted that there are numerous other ways to make photosynthesis, and there are more than 100 chemical reactions involved in the process. Investigating other possibilities might be the key to improving crop yield in a wide variety of crops.
Explanation:
Complete the following analogy.
Blood vessels are to animal as_____ are to plant.
•leaves
•xylem and phloem
•dermal tissue
Answers
Answer:
xylem and phloem
Explanation:
Xylem and phloem are basically the blood vessels of plants because they transport substances.
Answer:
dermal tissue
Explanation:
because epidermal cells are flattened and very close togother stomata ate found in the dermalbtissue
How would prescribing antibiotics affect someone with smallpox?
Answers
Answer:
Small Pox
Medical Condition
A deadly viral disease that has been completely eradicated.
How common is condition?
Extremely rare (Zero cases in US in 2015)
How is condition transmitted?
Transmitted through direct contact
Is condition preventable by vaccine?
Usually preventable by vaccine
Does diagnosis require lab test or imaging?
Requires lab test or imaging
Is condition treatable?
Treatments can help manage condition, no known cure
Time taken for recovery
Can last several days or weeks
Caused by infection with variola virus. Rashes on the face, hands and torso which form blisters and scabs which lead to formation of deep pitted scars. Smallpox has no cure; treatment involves managing symptoms.
Explanation:
Answer:
b
Explanation:
The fusion of a sperm and egg to form a ________________________
Answers
Answer:
zygote
Explanation:
gamates fuse and create zygotes
Answer:
Zygote
Explanation:
The fusion of a sperm and egg to form a zygote. Hope it helps you !!
Predict the phenotype of the offspring from a test cross between a seedless orange and an orange with seeds.
Answers
Answer:
Ss x ss. The seeded plant produces 2 gametes S and s in equal proportion, the seedless plant only s. They combine to give Ss and ss in a 1:1 ratio, so they will be 50% seeded and 50% seedless.
Explanation:
The diagram shows that the boiling point of water is 100°C Soiting point A How could you reduce the boiling point of water in this system?
Answers
Answer: there is no diagram but you could add a solute like table salt into the water or change the elevation of the activity as water boils at lower temps at higher elevation
Explanation:
Do analogous structures show an evolutionary relationship between two species (meaning do they show that individuals with analogous structures come from a common ancestor). Example: Flies and birds have wings. Do wings show that a fly is related to a bird?
Answers
Answer:
The correct answer is - NO.
Explanation:
To be specific to the question, the answer would be no as analogous structures do not show that two distinct come from a common ancestor. However, it shows the evolutionary relationship by stating that the species have different evolutionary origins and developmental patterns as they developed the organs with similar function and appearance but anatomically and embryological development is different.
The answer to the question "Do wings show that a fly is related to a bird?", is no it does not show the relation between fly and bird.
Which of the following is a way that bacteria cause disease?
Answers
Answer:
Enter your immune systems it can also be in the ffood you eat
Explanation:
Which of the following is NOT a classification of taxonomy?
Breed
Phylum
Class
Family
Answers
Answer:
Breed is the correct answer ( The last answer)
Explanation:
There are seven main taxonomic ranks: kingdom, phylum or division, class, order, family, genus, species.
Hope this helps!
What’s the answers the question?
Answers
Answer:
B- fold incorrectly
Explanation:
Prions are misfolded proteins with the ability to transmit their misfolded shape onto normal variants of the same protein. They characterize several fatal and transmissible neurodegenerative diseases in humans and many other animals.
What’s the meaning of metabolism?
Answers
Answer:
Metabolism is the set of life-sustaining chemical reactions in organisms. The three main purposes of metabolism are: the conversion of food to energy to run cellular processes; the conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some carbohydrates; and the elimination of metabolic.
Explanation:
Why is soil important to plants?
a.
It provides them with nutrients.
b.
It provides them with water.
c.
It provides them with a medium for growth.
d.
All of the above
Answers
Answer:
ITS (C).ALL OF THE ABOVE
Explanation:
I need this very fast!!
