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Andrei [34K]
3 years ago
5

The model shows a substance crossing a cell membrane.

Biology
1 answer:
djverab [1.8K]3 years ago
7 0

Answer:

C

Explanation:

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The basic unit of the cell membrane is the:
Hatshy [7]

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B. Lipid

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Phospholipids form the basic structure of the cell membrane, called the Phospholipid Bilayer.

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3 years ago
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Which ocean rim is called the "ring of fire" because of the several volcanoes and other tectonic activities present there?
Natalka [10]
The Pacific Ocean would be correct.  You may have heard of the Pacific Rim, and that's is what it refers to.
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3 years ago
Please Help ASAP
lawyer [7]

Evolutionary psychologists seek to understand how natural selection has shaped our traits and behavior tendencies. The principle of natural selection states that variations increasing the odds of reproducing and surviving are most likely to be passed on to future generations. Some variations arise from mutations (random errors in gene replication), others from new gene combinations at conception. Charles Darwin, whose theory of evolution has for a long time been an organizing principle in biology, anticipated the contemporary application of evolutionary principles in psychology.

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4 years ago
What class of flatworms is the largest parasitic group?
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Class Monogenea

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3 years ago
Earthworms help farmers. Many farmers add them to their farmland because they help form rich soil to grow crops in. Explain what
vova2212 [387]

Answer:

Earthworms are Invertebrates and or soil Invertebrates

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Remedial measures may be taken to promote beneficial organisms, thereby inhibiting the growth of destructive soil organisms...Can do so, because these soil invertebrates live their whole lives(most do) in the soil, adapted to, helping, and benefiting from the environment. Allowing them to act as . defenders for the soil.

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