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3 years ago

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The plasma membrane is considered a barrier to the environment because __________. no molecules may pass through it it controls

the passage of molecules into the cell it is located outside of the cell wall only water and small molecules may penetrate the membrane

1 answer:

NARA [144]3 years ago

6 0

Because of active transport

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Create a “why” type of questions that relate to the interactions of the four subsystem of the earth.

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2 years ago

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Please help, Giving Brainliest!!!!!

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Answer:

C) genetic variation

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The answer C is correct because genetic variation is the differences in DNA amongst species in a population. All these dog breeds have their distinct features because their DNA aren't all the same, like how some have big curly hair or short hair.

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The taxon species may be defined by reproductive isolation and _____.

ivann1987 [24]

<h3><u>Answer;</u></h3>

Morphology

The taxon species may be defined by <em><u>reproductive isolation and morphology </u></em>

<h3><u>Explanation;</u></h3>

<em><u>A taxon is a group of one or more populations of an organism. </u></em>
<em><u>Morphology is the form or the appearance of a particular organism, </u></em>while <u><em>reproductive isolation is the separation of organisms by some type of barrier.</em></u>
<em><u>Reproductive isolation is a type of mechanisms that prevent two or more organisms or populations from exchanging genes through reproduction. </u></em>This occurs when two organisms or species are separated for too long such that they can no longer reproduce with each other due to different adaptation and changes in the environment.
<u><em>Morphology and reproduction isolation may be defining characteristics of taxon of species.</em></u>

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