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Nadusha1986 [10]
3 years ago
9

What problem is faced by organisms that live in fresh water?

Biology
1 answer:
muminat3 years ago
7 0

Answer:

A. Their bodies tend to take in too much water.

Explanation:

Osmoregulation is the maintenance of osmotic concentration inside the body cells and in the extracellular fluid by controlling the amount of water and salts.  Organisms living in water can be divided into two groups: Some are osmoconformers which change the osmolarity of body fluids with respect to the surrounding medium. Some are osmoregulators which do not allow change in internal osmolarity and try to maintain it by various means.

If as osmoregulator is placed in fresh water environment then their body is hypertonic to their environment. Osmosis will occur which is the movement of water from low solute to high solute concentration. Thus the problems faced by such organisms would be:

- Entry of excess water

- Loss of body salts to outside.

Adaptations in such organisms would be:

- Body cover such as scales or adipose covers

- They do not drink more water

- Excess water is eliminated as dilute urine

- Special cells called ionocytes or chloride cells help in active uptake of sodium ions and chloride ions.

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Answer:

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Yuko is Japanese and Elizabeth is American. Statistically, Yuko is more likely than Elizabeth to:
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Statistically, Yuko, who is Japanese, is more likely to express embarrassment when she is successful in a task, than Elizabeth, who is American.

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3 0
3 years ago
what would happen if the steady state of a couple of elements, specifically oxygen and nitrogen, were disrupted?
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Answer:

We would possibly die

Explanation:

we turn oxygen into carbon dioxide, which plants need to live or else they die, creating a problem for all animals in the planet. Plants need carbon dioxide to continue photosynthesis.

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3 years ago
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What is the main cause of competition between two species?
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Interspecific competition may occur when individuals of two separate species share a limiting resource in the same area. If the resource cannot support both populations, then lowered fecundity, growth, or survival may result in at least one species.
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Volume can be measured in liters or cubic meters. true or false
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Answer:

The correct answer option is True.

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The basic unit of volume in the metric system is a liter while the SI unit of the volume is the cubic meter.

Therefore, the given statement is true.

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