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mart [117]
3 years ago
12

I will give brainliest to the first person who answers!

Biology
2 answers:
vlabodo [156]3 years ago
6 0

Answer:

C, just saying so he can be brainliest

Explanation:

sveta [45]3 years ago
5 0
The answer would be C, as many streams/rivers carry plant seeds, dispersing them. If there was a drought, these seeds wouldn't be able to float on the stream and disperse.
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A lung cell maintains homeostasis. Of what is this an example?
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The right answer is A: intercellular communication.

An example of intercellular communication is the one between the kidney, liver and lungs to preserve water-soluble homeostasis.

Angiotensinogen, an inactive protein produced by the liver, circulates in the blood. It is the precursor of the active peptides angiotensin I and II, and the only substrate of renin.

In the event of a drop in the pressure in the renal artery, renin (an enzyme sometimes considered as a hormone) is secreted in the kidney by differentiated myoepithelial cells of the arteriole afferent of the juxtaglomerular apparatus. There are also other stimuli promoting renin secretion: decreased natremia in the distal convoluted tubule, ß-agonists, hyperkalemia, PGI2 and stimulation of juxta-glomerular cells by the sympathetic nervous system)

The angiotensinogen is cleaved by the renin and forms a decapeptide called "angiotensin I", inactive.

Angiotensin I will then be converted primarily to angiotensin II by a carboxypeptidase, the angiotensin converting enzyme. This enzyme, secreted by the liver, acts at the pulmonary level.

8 0
2 years ago
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A black erminette chicken is crossed with a white erminette chicken. what color are the offspring
NeTakaya
They could be white or black. Black should be dominant, I guess, so 75% of offspring should be black.
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3 years ago
A gland is a group of cells or an organ that
Karo-lina-s [1.5K]

Answer:

secretes hormones

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endocrine system

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3. Explain how a mutation can occur.
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Either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.

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In the 1950's, a young woman sued film star Charlie Chaplin for parental support of her illegitimate child. Charlie Chaplin's bl
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