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oksian1 [2.3K]
3 years ago
12

How is energy expended in active transport​

Biology
1 answer:
blondinia [14]3 years ago
3 0

Hello!

We know that the movement of molecules from an area of low concentration to high concentration. This movement is <em>against</em> the concentration gradient and thus requires the use of adenosine triphosphate (ATP) to successfully move. This process is the opposite of diffusion, which requires the use of no energy because it moves materials <em>DOWN</em> the concentration gradient.

I hope I helped! Feel free to leave a comment down below if you need any more assistance, even if it is not with this question. :)

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Dovator [93]
Areas that have a higher salinity have colder water.
8 0
2 years ago
Studies involving humans or animals are conducted under strict policies and procedures. This solution addresses which limitation
mario62 [17]

Answer:

D.Ethical concerns

Explanation:

Ethics is a term used in scientific experiment to refer to conducting experiments under the correct rules of conduct necessary when performing a research.It is a moral responsibility of a researcher to protect participants in a research from harm.Some of the ethical issues are: beneficence, respecting privacy, informed consent and respecting anonymity and confidentiality.

8 0
3 years ago
Read 2 more answers
The tree includes the most recent common ancestor of all living species of bears (branch point 1). what does this tell you about
inessss [21]
If we take a look at the phylogenetic tree of bears presented in the picture above, we can see that the branch number one is the common ancestor to all living bear species, which means that the whole group has a uniform origin. and the phylogenetic tree has a root.
Therefore, the group is monophyletic, not <span>polyphyletic ( meaning that the whole group has the same origin) and not paraphyletic ( there is no group that has been excluded from the tree).</span>

8 0
2 years ago
What is the volume of a sample of water is the mass is 6.7 g?
BARSIC [14]
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8 0
3 years ago
In "simple columnar epithelium," which word describes cell shape and which word describes the number of cell layers?
dolphi86 [110]

Answer:columnar describes cell shape.

Simple describe the number of layers

Explanation: epithelial tissues are one of the four major tissues of the body.the others being nervous, muscular, connective tissues.

Epithelial tissues are made up of thin cells that cover the external and internal surface of the body.

The cells may form one layer or more and they occur in several shapes.if they form one layer ,it is called simple.if they form several layers,it is called stratified.

Some are called pseudo-stratified because the cells occur with varying lengths and give the impression of stratified but they are actually made up of one layer.

Simple columnar epithelium is a single layer of tall, closely packed cells. They possess cellular extensions ,such as microvilli in the small intestine, or the cilia in the female reproductive tract.

3 0
2 years ago
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