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Kisachek [45]
3 years ago
8

HELP URGENT!!!!!!!!!!!!!!​

Biology
1 answer:
pashok25 [27]3 years ago
4 0
If the paramecium was not able to contract its contractile vacuole, it would be in danger of bursting. The cell would not be able to hold too much water. This would happen faster if the paramecium was in water with a low salt concentration because there is more water and less salt, so the water would accumulate faster.
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What affects the likelihood that an allele will reach fixation in a population that has undergone a bottleneck?
Igoryamba
<span>the large population becomes smaller. also, bottleneck is when a large population quickly shrinks. the effects of genetic drift becomes much stronger. e.g: seals alleles can be lost during bottleneck and the number of alleles left can shift dramatically in just a few generations.</span>
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3 years ago
What is the region of the sarcolemma across from the axon terminal at the neuromuscular junction?
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Answer:

The answer is motor end plate.

Explanation:

<em>The region of the sarcolemma across from the axon terminal at the neuromuscular junction is the motor end plate.</em>

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In a comparison of birds and mammals, the condition of having four limbs is.
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In a comparison of birds and mammals, the condition of having four limbs is a shared ancestral character

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2 years ago
Which of the following describes the embryonic period
dangina [55]

There should be options for this question. I manged to find them elsewhere. They are:

A) the period during which tremendous growth occurs and the organs continue to develop and become  functional

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D) the period during which the zygote moves down to the uterus and begins to implant in the lining

The correct answer is C. The embryonic period is the period during which the major organs and structures of the organism first develop. The embryonic period lasts from implantation of the egg in the uterus until about 8 weeks from the time of conception. It is the second major stage of prenatal development, prior to embryonic is the germinal stage and lastly is the fetal stage.

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Which of the following is/are characteristics shared by most animals?
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