Choices:
A) Having antlers makes the males grow bigger so they can better compete for food in the fall.
<u>B) Antlers make a male moose more </u><span><u>likely to attract a mate and pass on the gene for antlers. </u> THIS IS THE CORRECT ANSWER
</span>C) Male moose spend all their excess energy growing antlers and cannot help raise offspring.
D) Male moose without antlers are more attractive to females because they can escape <span>predators</span>
Answer:
The correct option is<u> slight increase in salt concentration in the
</u>
<u>environment.</u>
Explanation:
The main function of contractile vacuole in the body of a paramecium is to pump out excess water. But an increase in salt concentration in the environment will let the water move inside the cell by osmosis. Hence, the contractile vacuole will not perform its function and will not be able to regulate osmoregulation.
Other options are incorrect because slight changes in the temperature or pH won't affect the contractile vacuole and it will still be able to perform its function.
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. When a neutral molecule has a positive area at one end and a negative area at the other, it is a polar molecule.
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