Which statement explains why oxygen molecules easily diffuse across a cell
membrane while DNA molecules do not?
A. Oxygen molecules are more useful to a cell than are DNA
molecules.
O B. DNA molecules contain carbon atoms, while oxygen molecules
have only oxygen atoms.
C. Oxygen molecules are very small, while DNA molecules are very
large.
D. DNA molecules have phosphate groups that the cell membrane
repels.

Answers

Answer 1

Answer:

C.

Oxygen molecules are very small, while DNA molecules are very large.


Related Questions

What is one way a mountain might form?
A. Ocean wave force
B. Gravitational pull
C. Glacier movement
D. Volcanic activity
(A p e x)

Answers

Answer:

D.) Volcanic Activity

Explanation:

B is the answer i think

What are the three domains into which organisms are classified

Answers

Answer:

The Archaea, the Bacteria, and the Eucarya.

Explanation:

The Archaea, Bacteria, and Eucarya are the three kingdoms of life. Archaea and Bacteria possess prokaryotic cell structures, but the category Eucarya (eukaryotes) includes cells with a nuclear that separates the genetic information from either the cytoplasm.

-results from immigration
-new genes brought into a population
-variation in a population increases

What do the notes describe?

Answers

discribes how and what was effected in what happened

What is the main source of nutrients for autotrophs?

Answers

Answer:

Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.

For a reaction, A H= 2 kJ. For which value of TA Sis the reaction spontaneous?

Answers

Answer:

option a is the answer I think so

Answer:

option a

Explanation:

For which value of TA Sis the reaction spontaneous?

Explain how sunlight is the primary source of energy for your own life

Answers

Answer:

Sunlight helps in the process of photosynthesis where plants are able to make their own food. Plants are also source of food and they also provide oxygen for humans and animals to breather

Explanation:

I hope it helps you

What do stabilizeing selection and disruptive selection have in common

Answers

Explanation:

Stabilizing selection is the opposite of disruptive selection. Instead of favoring individuals with extreme phenotypes, it favors the intermediate variants. Stabilizing selection tends to remove the more severe phenotypes, resulting in the reproductive success of the norm or average phenotypes.

Which animal population do scientists frequently study in order to identify specific ways to evaluate the impacts of contaminants on biological communities?

a. bottlenose dolphins

b. giant tortoises

c. mallard ducks

d. swan geese

Answers

Answer:

mallard ducks I think so

Answer:

D.

Explanation:

Galapagos tortoises have been and continue to be threatened by predation and habitat destruction from invasive species, and increasing human

Which factor plays a central role in determining which of the brain's synapses will be eliminated and which will be maintained?

Answers

Answer:

The answer is "frequency with which they are activated".

Explanation:

Frequency refers to the number of consecutive repetitive events per unit time. It is measured in hertz (Hz), equivalent to a single event per second. The time is the number of one cycle in a recurrent event, and so the duration is the same for the frequency, hence the frequency at which they are triggered is a key determinant of the brain's connections to be eliminated and maintained.

Write two sentences or clues, one for each word, that will help you remember the difference between actin and myosin. (Example: Actin is actively pulled)?

Answers

Answer:

The correct answer is -

Actin produces thin contractile filaments within muscle cells,

Myosin produces the dense contractile filaments within muscle cells

Explanation:

Actin is a globular protein that makes actin filaments by arranging in the long spiral chain or produces thin contractile filaments within muscle cells. It is found in cell cytoplasm as well as in the nucleus in eukaryotic cells.

Myosin is a motor protein that produces the dense contractile filaments within muscle cells and plays role in generating movement and force from chemical energy.

Limestone, which contains the mineral calcite that fizzes in weak acid, may change
due to heat and pressure into the metamorphic rock marble. What characteristics
would you expect the marble to show?

A: it would show fossils.
B: It would not fizz in acid.
C: It would have stripes.
D: It would fizz in acid.

Answers

Answer:

D: It would fizz in acid.

Explanation:

Marble is a limestone & will have an acid reaction that is similar to the limestone from which it was formed.

Answer:

yup  

A: it would show fossils.

B: It would not fizz in acid.

C: It would have stripes.

D: It would fizz in acid.

Explanation:

Which is found in both DNA and RNA?
A. thymine
B. uracil
C. adenine
D. ribose

Answers

Answer:

in DNA it is deoxyribose and in RNA it is ribose

Answer:

C. Adenine

Explanation:

DNA and RNA both have adenine, guanine, and cytosine.

DNA has thymine, which RNA does NOT have.

RNA has uracil, which DNA does NOT have.

The term referring to the structures in the nucleus containing genetic material (literally "bodies of color") is

Answers

Answer:

chromosomes

Explanation:

chrom means color and somes means bodies

A scientist was studying a population of elephants. The first year, he counted a population of 80. Over the next eight years, the population's numbers were 94, 100, 103, 110, 125, 120, 125, 120. What appears to be the carrying capacity for this population? 120 124 125 126

Answers

Answer:

125

Explanation:

The correct option would be 125.

The carrying capacity of a particular environment generally refers to the maximum number of individuals of a particular species that the environment can support at a particular time based on the resources it has. Hence, the maximum population of a species will normally oscillate around the carrying capacity of the environment where it is found.

In the case of the elephants in the illustration, the maximum population recorded was 125. The population decreased from this value at some point only to increased back to it later.

Hence, the carrying capacity for the elephant is 125.

Answer:

125

Explanation:

Water evaporates from a lake. Arrange the next steps of the water cycle in the correct order.
Water vapor condenses to form clouds.
Water flows down mountains and hills.
Water falls as rain, snow, and sleet.
Water joins streams or forms
groundwater

Answers

Answer:

1. Water evaporates from a lake

2. Water vapor condenses to form clouds

3. water falls as rain, snow, and sleet.

4. water flows down mountain and hills

5. water joins streams or forms ground water

Repeating cycle

which best describes a difference between transcription and dna replication

Answers

transcription makes the dna , dna replication doesn’t

Select the correct locations on the image.
in which four locations do hurricanes occur?


Answers

Answer:

Explanation:

Hope that helps                                      

Match the type of ELISA with what it is used to detect. Question 2 options: detects presences and concentration of antigen/protein detects presences and concentration of antibody 1. indirect ELISA 2. sandwich ELISA

Answers

Answer:

ELISA is a technique of enzyme linked immunosorbent assay.

Explanation:

The full form of Elisa is enzyme linked immunosorbent assay. The ELISA technique is a boichemical technique that is used to measure the amount of protein or the antibody in a solution and is divided into three types :

Competitive ELISADirect ELISA or Sandwich ELISAIndirect ELISA

1. Indirect ELISA ---  detects the presences and concentration of the antibody.

2. Sandwich Elisa or Direct ELISA  ---  detects the presences and concentration of the antigen/protein.

các cặp gen trong phép lai sau là di truyền độc lập AaBbDdXX AaBbDdXYcho thế hệ F

Answers

Answer:

rjwosxjudua9e8r7xj, hq9rbfsi48t8fidjxh hd

Explanation:

6482hfjziso37bh7r9w9qhzh

Which diagram correctly shows how heterozygous alleles are found on homologous chromosomes?

A chromosome is labeled Upper A a.

A chromosome is labeled a a.

2 chromosomes are labeled Upper A and a.

2 chromosomes are labeled a and a.

Answers

Answer:

the chromosome are found in the nucleus of a body cell in pair

The answer is a right i hope this help guys

Answers

Answer: Yes, this helps a lot.

Anemia is a medical condition in which the affected person lacks enough red blood cells. What two effects will such a condition have on the patient?

The patient will have less hemoglobin in the blood.
The patient will have less immunity against bacteria.
The patient will have a reduced oxygen supply to the cells.
The patient will have a thicker blood composition.
The patient will have increased platelets in the body.

Answers

Answer:

very truthful

The patient will have less hemoglobin in the blood.

The patient will have a reduced oxygen supply to the cells.

PLEASE PLEASE HELP ME WITH THIS PLEASE PLEASE HELP NOW PLEASE GOD PLUS YOU PLEASE please Help me please

Answers

Answer:

Sorry ...

Explanation:

Unfortuntely, you can only answer this question if you've read the book. Those reading this pretty much haven't.

1) what are the roles of plants, animals and decomposers in an ecosystem ??​

Answers

Explanation:

Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up.

Species that compete for the same resources often switch to either use different resources or find ways to reduce competition. Why is this often true

Answers

Answer:

The correct answer is - to increase their survivability and reproductivity in the species.

Explanation:

Competition is the result of an interaction between two or more species or populations where both need or depends on the same limited resources that is utilized and protected by both and due to this one individual reduces the survival or reproduction of another individual.

In order to survive and reproduce their numbers species have to find other resources to feed or utilize or have to find new ways as if they did not adapt as per the changes they will be left very few or extinct.

Which statement best describes how a tree and a mouse get the glucose they need as a source of energy?
O Both a tree and a mouse get glucose indirectly from other living things
A tree makes glucose using the sun's energy, and a mouse gets glucose by eating other living things
Both a tree and a mouse use the sun's energy directly to produce glucose.
Both a tree and a mouse convert ATP into glucose.

Answers

Answer:

The correct answer is

A tree makes glucose using the sun's energy, and a mouse gets glucose by eating other living things.

Explanation:

A tree uses photosynthesis to create energy in the form of glucose. On the other hand, a mouse cannot use the sun's energy to produce glucose through photosynthesis. Therefore the mouse must obtain the glucose by consuming other organisms, such as plants and insects.

hope it helped :)

mark me brainliest!

How does evolution explain both the unity and the diversity of all living things?

Answers

Answer:

Having a similar dna makeup as one animal but our features and genetic makeup different than that one animal.

Explanation:

There is unity in having the same dna as one animal but diversity in our features

Explain the process of Digestion in our body​

Answers

Answer:

The digestive system ingests and digests food, absorbs released nutrients, and excretes food components that are indigestible. The six activities involved in this process are ingestion, motility, mechanical digestion, chemical digestion, absorption, and defecation.

Explanation:

hope this helps

Eukaryotic chromosomes contain two general domains that relate to the degree of chromatin condensation. These two regions are _

Answers

Answer:

This question lacks options, options are: A) Heterochromatin and euchromatin

B) Uniform in the genetic information they contain

C) Separated by large sketches of repetitive DNA

D) Each void of typical protein-coding sequences of DNA

E) Void of introns.  

The correct answer is A.

Explanation:

The chromatin or substance that makes up the nuclei of cells and that results from the interaction of DNA with histonic and non-histonic proteins and RNA; it can present different degrees of packing or contraction. When chromosomes are stained with chemicals that bind to DNA, densely stained regions and less densely stained regions appear. Heterochromatin are segments of the chromosome that stain strongly and remain visible, practically, during the entire cell cycle. There are few genes in these regions and therefore low transcriptional activity. They are supercondensed regions. Euchromatin are segments of the chromosome that are not visible during telophase and interphase, only in metaphase. It corresponds to regions that are less compact and in which there is a higher gene density.

Can you find any metaphases from the image below? What happens during metaphase?

Answers

14, 17, and 19 are close to what metaphase looks like.

Metaphase is when chromosomes line up in the middle of a cell or the metaphase plate
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