The structure of DNA resembles a twisted ladder. Which structural components form the rungs of the ladder?
A deoxyribose sugars
B phosphate groups
C nitrogenous base pairs
D ribosomes
answer is nitrogenous base pairs

Answers

Answer 1

Answer:

The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.

Explanation:

deoxyribose + phosphate group + thymine

Answer 2

Answer:

C

Explanation:


Related Questions

What question could you ask about the bones?

Answers

Answer:

How deep were the skulls buried?

Which of the following represents the phases of mitosis in their proper sequence?

Answers

Answer:

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. Some textbooks list five, breaking prophase into an early phase (called prophase) and a late phase (called prometaphase).

What are "Chloroplasts"?

a.an organelle of some eukaryotic cells in which photosynthesis occurs, using the energy of light to make organic compounds from carbon dioxide and water

b.the substance inside a cell, prokaryotic or eukaryotic, including organelles, but
not including the nucleus of a eukaryotic cell

c.membrane-bound organelles in eukaryotic cells in which cellular respiration
takes place, using oxygen to break down glucose to carbon dioxide and water

d.a cell organelle that is essential to cell functions including reproduction, contains
the cell's chromosomes, and is enclosed by a membrane

Answers

Answer:

cloraplast is what makes the plant green

The answer is A because chloroplasts is an organelle of some eukaryotic cells where photosynthesis occurs

Which event or principle CANNOT have its validity directly tested by laboratory experiment?
Select one:

a. the big bang theory

b. the conservation of energy

c. the periodicity of element properties

d. the acceleration of objects due to gravity

Answers

 because the Big Bang theory has to do with space and earth

In a woodland ecosystem, the number of species of microorganisms in the soil that do not
harm plants increases. How does this rise in biodiversity affect the sustainability of the
ecosystem?
A The rise in biodiversity makes the ecosystem less sustainable.
B The rise in biodiversity makes the ecosystem more sustainable.
C The rise in biodiversity does not change the sustainability of the ecosystem.
D The rise in biodiversity makes the ecosystem only temporarily less sustainable.

Answers

Answer:

I think it’s B

Explanation:

Veteran trees are home to a variety of invertebrate species because a woodland's diversity is essential (insects, spiders, millipedes, centipedes, etc.), Thus, option B is correct.

What is the rise in biodiversity in woodland ecosystem?

In addition to lichens and fungi. Mature forests also favor bats among other species. Biodiversity in the woodland is a result of structural diversity.

Stability increases with biodiversity in ecosystems, species, and people. For instance, species with numerous populations that are adapted to a wide range of conditions and high genetic diversity are more likely to be able to withstand disturbances, disease, and climate change.

Generally speaking, expanding the variety of habitats or vegetation structures present at a site can be done to increase biodiversity.

Therefore, The rise in biodiversity makes the ecosystem more sustainable.

Learn more about woodland ecosystem here:

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How many different ELEMENTS are in Na2SO4?
A.)1
B.)3
C.)6
D.)7

Answers

Answer:

D, 7

Explanation:

In one molecule of sodium sulfate, or Na2 SO4, there are seven atoms in all. The chemical formula for this molecule tells us this.

The picture shows a model of a cell.

What is the main function of the parts labeled Xin the model?

O A. To store enzymes that break down food

B. To provide cells with energy for their activities

C. To use energy from sunlight to make sugars

D. To hold and protect the cell's DNA

Answers

Answer:

it is b: to provide energy for their activities.

Explanation:

the organelle that's labeled x is a mitochondria.

Answer: the answer is b I just got iy

Explanation:

Choose all that apply. Carbohydrates contain the following elements:

Answers

Answer: carbon, hydrogen, and oxygen

Explanation:

hydrated carbon which results to sugar and oxygen

Explanation:

plz give me brainiest

Why does DNA need to be extracted from a cell before it can be analyzed?

Answers

Answer:

to study the genetic causes of disease and for the development of diagnostics and drugs.

Explanation:

It is important to extract DNA from a cell in order to study the genetic causes of disease and for the development of diagnostic and drugs. Scientists will use a cell culture system, which is cells from an organism that have either been made to continuously proliferate (grow) or are cancerous in nature (from cancer).

These cells allow us to continue working on experiments where we can change the conditions to determine various cell functions.

7. Why is the property of specific heat important to aquatic life?​

Answers

Answer:

Specific heat means amount of heat required to raise a temperature of a particular body, in case of aquatic life the specific heat plays an important role, the organisms living in an aquatic system require an certain body temperature to be maintained in order to survive.

Specific Heat raises the temperature of the water body resulting in Aquatic life to survive.

Diffusion is an important process in animals and plants.
The movement of many substances into and out of cells occurs by diffusion.
Describe why diffusion is important to animals and plants.
In your answer you should refer to:
• animals
• plants
• examples of the diffusion of named substances.

Answers

Answer:

Diffusion helps animals in respiration. The cells in an animal's body need glucose and oxygen for respiration. Both these are carried in the blood. When blood reaches the cells the molecules of glucose and oxygen diffuse out of the blood and into the cells. As cells use up the glucose and oxygen they produce waste chemicals and carbon dioxide.

Diffusion is a very important process for photosynthesis where carbon dioxide from the stomata diffuses into the leaves and finally into the cells. This helps the plants to photosynthesize and produce more food.

Example for animals: Animals using glucose and oxygen in diffusion.

Examples for plants: Plants using carbon dioxide to photosynthesize.

could someone please help me out on this? im confused​

Answers

Answer:

Dependent: Reduction

Independent: Solar Energy

Controlled: B

Explanation:

The dependent variable is what is being measured in the lab.

The independent variable is what is being CHANGED by the individual

The control is what is kept the SAME throughout the lab.

Hope this helped!

What do seals and birds have in common in the food web?

Answers

Answer:

Well.

Explanation:

Well, for the most part, both seals and birds eat fish.

And, both seals and birds get eaten by sharks.

What are cat and dog paws adapted for?

Answers

Answer:

Explanation:

The cat and dog paws are adapted for walking, running, climbing and digging. Both the animals can use their front paws and back paws for different needs or just as the situation ahead of the demands.

Can anyone help me with any of these questions? Please

Answers

Answer:

peanut butter - reduces risk of heart disease and lowers cholesterol

egg - protein; cell repair and growth

2 questions

10. During cell division, the genetic material in a cell needs to duplicate - before
it divides into 2. *
True
Or
False


11. Chromosomes (genetic material) are located outside of the nucleus of the
cell. *
True
ОR
False

Answers

Answer:

10: True

11: Eukaryotic chromosomes and Linear chromosomes are located in the nucleus.. Not outside. So, I think false. But you can pick

Diabetes is often suspected when glucose shows up in urine tests. Use the model to explain how glucose could be present in urine. Why do you think this symptom is especially concerning for young people?

Answers

Answer:

S.A for Edmentum and Plato

Like and Rate

In step 1, blood goes to the kidney for filtration. If excess sugar exists in the blood, the filtered substances will have more sugar than they do in a person who doesn’t have diabetes. In step 2, there is some reabsorption of sugar. But if there’s an unusually high amount to filter, some sugar will stay in the urine as it passes through the renal tubule to be excreted by the body. This symptom is concerning because it could stress the kidney, which could lead to kidney problems at a young age.

Please help!! I have to label the organelles in this cell plant!

Answers

1) mitochondria
2)nucleus
3)vacuole
4)chloroplast
5) cell wall

Identify the process in which the cell strives to maintain dynamic equilibrium:
homeostasis
turgor pressure
cytolysis
plasmolysis

Answers

Answer:

homeostasis

Explanation:

Homeostasis refers to the ability of the cell to keep a constant and stable environment. This includes chemical, physical, and biological components.

Cells need to regulate their environment despite the conditions outside of the cell. They need to be able to quickly adapt to changes to avoid harm to the cell.  

A relationship between living things that depend on the same
resources at the same place and at the same time is called

Answers

Answer:

competition

Explanation:

i searched it up

Answer:

Competition

Explanation:

Competition is a relationship between living things that depend on the same resources. The resources may be food, water, or anything else they both need. Competition occurs whenever the two species try to get the same resources in the same place and at the same time.

Which of the following abiotic factors can influence the number of plants that can grow in an ecosystem?

Answers

Answer: The most important abiotic factors for plants are light, carbon dioxide, water, temperature, nutrients, and salinity.

What happens to an atom if it gains an electron? *
A.It becomes negative
B.It becomes neutral
C.It becomes positive
D.None of the above

Answers

Answer:

It became negative

Explanation:

Pleaseeee help!!! This is due today!!

Write one page that tells me about your biome (Shrublands).

The pic is stuff I know already.

Answers

Some of the animals are blacktail deer, rabbits, foxes, coyotes, snakes and lizards, and all kinds of birds.

HELP PLEASE! fill in the blanks

Answers

Answer:

infectious agents/germs, immune system, circulatory system

Explanation:

Describe how light enters into your eye. Be sure to use the following vocabulary: cornea, pupil, lens, retina, and
optic nerve.

Answers

Answer:

retina

Explanation:

Your task is to decide which dig site is most likely to produce Dimetrodon fossils. What kinds of information do you think would be most useful for making your decision?

Answers

To uncover Dimetrodon fossils, researchers must first research the dimetrodon's habitats, then go to modern-day replicas of those past ecosystems.

Dimetrodon fossils:

Because its remains have been discovered in Texas and Oklahoma in the United States, Nova Scotia, Canada, and all throughout Europe, the Dimetrodon is likely to have been well suited to a broad range of environments.

The first fossil was discovered in the nineteenth century, and Edward Drinker Cope named it in 1878.

Find out more information about 'Fossils'.

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What does the term frameshift mean in science

Answers

Answer:

A frameshift mutation is a type of mutation involving the insertion or deletion of a nucleotide in which the number of deleted base pairs is not divisible by three.

Explanation:

Answer:

A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. A DNA sequence is a chain of many smaller molecules called nucleotides.

HOPE IT WILL HELP U!

help with this please

Answers

Answer:

cell wall: Rigid protective barrier around a cell made of polysaccharides

Explanation:

Thats all i got sorry

BRAINLIST OPPORTUNITY



Which type of infectious agent causes athlete's foot?
O a virus
O a bacterium
O a fungus
O a parasite

Answers

the answer is c. a fungus

Answer:c

Explanation:

Are eukaryotes multicellular or unicellular or both?

Answers

The answer is actually Both
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