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3 years ago

Which of the following is a characteristic of the plasma membrane?

Biology

1 answer:

Zina [86]3 years ago

3 0

Answer:

D. It allows some molecules to pass through but prevents others from doing so.

Explanation:

Plasma membrane or cell membrane is a selective permeable membrane which allows light molecules to pass and prevents heavy molecules.

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Which drugs appear to produce therapeutic effects by blocking receptor sites for dopamine?

Tems11 [23]

The correct answer is c.antipsychotic drugs.
<span>Drugs that block dopamine receptor sites are dopamine antagonist (antidopaminergic). Dopamine antagonists are a type of drugs which blocks dopamine receptors by receptor antagonism. Those antagonists are used as antipsychotics, so they have found use in treating schizophrenia, bipolar disorder, and stimulant psychosis. Also, they can be antiemetics used in the treatment of nausea and vomiting or used as <span>anti-depressants.</span></span>

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The principle of independent assortment involves at least how many different gene pairs?.

Flura [38]

Independent assortment occurs spontaneously when alleles of at least two genes are assorted independently into gametes.

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2 years ago

Use the drop-down menu to identify what each label

ycow [4]

Explanation:

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bi is tributary

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Kepler's second law using Mercury , which has an orbital period of about 0.24 and a semimajor axis of about 0.387 . Explain your

krok68 [10]

As the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.

<h3>What is Kepler's second law?</h3>

Kepler's second law of planetary motion describes the speed of a planet traveling in an elliptical orbit around the Sun.

This law exaplains the speed of planets around the sun, the speed of the planet increases as it nears the sun and decreases as it recedes from the sun.

From the findings, the astronomical unit of the Mercury is 0.387 and the orbital period is 0.24 year.

$T \propto a^{3/2}$

$T = ka^{3/2}\\\\k = \frac{T}{a^{3/2}}$

From the equation above, as the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.

Learn more about orbital period here: brainly.com/question/22247460

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2 years ago

Species X and Y have very similar proteins and DNA. Species X and Z have very

IrinaVladis [17]

Answer: c

Explanation:

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