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kotegsom [21]
3 years ago
5

I need help on this!!!!!!!!

Biology
1 answer:
madam [21]3 years ago
3 0

Answer: I think it might be C

Explanation:

Because it tell you the same info that was in the text then in the question.

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A number of marine reptiles and birds have salt glands, which have a remarkable ability to concentrate salt solutions for excret
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Answer:

A)100mL  B)50mL  C)The second option  D)Hypoosmotic Environment

Explanation:

The average Na concentration in the seas and oceans of the world is around 3,5% which mean that in 100 ml of sea water, there is around 3,5 grams of Na.

The weight of one mol of NaCl is 58,44 grams. For 3,5 grams of NaCl, we get 3,5/58,44 = 0,060 mol of NaCl which is 0,060x1000 = 60 mmol/100ml. According to this and the information given in the question about the secretion of the salt glands', if the average sodium concentration is 600mmol/L, we have 60*10 = 600mmol/L so it would take 100 mililiters of water to excrete.

If the average Na concentration of the salt gland's secretion were 300 mmol/L, only 50 mililiters of water would be needed to excrete the same sodium load.

The second option of secretion is hyperosmotic to seawater because the concentration is higher.

Osmoregulation is the process of balancing the amount of water and salt between the body of the organism and its surrounding environment. For salt glands to be advantageous for osmoregulation, they need to be in a hypoosmotic environment.

I hope this answer helps.

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3 years ago
Which Characteristic Of Life Is Shown When a Eukaryotic Cell's Genetic Material Divides?
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The answer is B. Reproducing

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a North American swamp or bog consisting of a mixture of water and partly dead vegetation, frequently covered by a layer of sphagnum or other mosses.

Explanation:

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When all the values in a data set are written in order from least to greatest, the value that is in the middle, with an equal nu
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B.

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