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Naily [24]
3 years ago
12

What causes populations of organism to change over time?

Biology
2 answers:
AfilCa [17]3 years ago
6 0

Answer:c

Explanation:

viktelen [127]3 years ago
4 0
I believe the answer is c
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What enzyme connects the new nucleotides together and proofreads them
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DNA it is a string of dna which can be prooved anytime or you can call it DNA replication
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3 years ago
Look at the two images of cells.
BartSMP [9]

Explanation:

A)Image A represents a peptide hormone that interacts with a receptor, and image B represents a steroid hormone that interacts with the cell’s DNA

The endocrine system involves chemical signalling via the secretion of molecules called hormones into extracellular fluid.

  • Steroid hormones are lipophilic, and readily diffuse across cell membranes. They bind to receptors in the interior of the cell to form a complex which regulates gene expression.
  • Peptide hormones however,are hydrophilic, and thus cannot readily diffuse across the membrane. They remain outside the cell, binding to receptors which then activate secondary messenger signalling and a subsequent cellular response.

Further Explanation:

Hormones bind to chemical receptors in order to cause specific changes in target cells, these lead to changes in the body's internal environment called homeostasis. It includes the thyroid, parathyroid, pituitary, pineal and adrenal glands along with other regions.

The bone, adipose tissue, heart, pancreas and liver are a few of the regions of the body which show endocrine function. The brain, or control center functions to receive and process the information from the receptor. Effectors receive the control center's command and elicits a response in the form of a feedback loop, that may oppose or enhance the stimulus.

Cells in a multicellular organism become specialized for particular tasks and communicate with one another in order to maintain homeostasis. Within the human body these are known as hormone cascades, where several complex steps occur- the tissues signal to one another with the use of hormones released by the endocrine system. The regulation (increase and decrease) of these secretions is achieved by negative feedback loops, where the release of certain substances during a cascade in turn halts the secretion of hormones at earlier stages.

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

8 0
4 years ago
The most common drug that can affect nutrition in older people is
Luden [163]
The answer could be numerous types of drugs, but i believe alcohol is your best bet 
7 0
3 years ago
Severing a cat's reticular formation from higher brain regions causes the cat to a. lapse into a coma. b. cower in fear. c. beco
liubo4ka [24]

Answer:

I think is E....

Explanation:

hope it helps

4 0
4 years ago
Where is the chromosomes located
iragen [17]

Answer:

in the nucleus

Explanation:

Chromosomes are structures located inside the nucleus of animal and plant cells.

3 0
3 years ago
Read 2 more answers
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