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Nikitich [7]
3 years ago
12

A white mass is cross with a black mouse all the offspring were gray the jeans for the for color in mice show what

Biology
1 answer:
Yanka [14]3 years ago
3 0
R u using a punnet square?

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The presence of cholesterol in the plasma membranes of some animal cells _____. The presence of cholesterol in the plasma membra
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Answer:

The presence of cholesterol in the plasma membranes of some animal cells <u>enables the membranes to stay fluid when cell temperature drops</u>.

Explanation:

Cholesterol is an essential lipid in the basic structure of cell membranes. The membranes must have a fluid structure so that the proteins integrated in them can move ''horizontally'' to interact with their ligands and with other proteins. With excess saturated fat the membranes become rigid, but only with the necessary unsaturated fat the membranes are extremely fluid, and very sensitive to changes in temperature. Cholesterol stabilizes the structure of the membranes; preventing the collapse and crystallization between lipid chains that would lead to loss of fluidity and excessive rigidity in the membrane. By decreasing the temperature; as temperatures drop, fluidity decreases, an effect that partially counteracts the presence of cholesterol.

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3 years ago
What are two ways bacteria and protists can be helpful to people?
kotegsom [21]

Bacteria: They are in your intestines to break down food and produce vitamin k your body needs.

Protist: Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis.

Hope this helps in some way !
7 0
4 years ago
What conclusion can be drawn from the Theory of Plate Tectonics?
Ivan
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8 0
3 years ago
Which describes the correct order of steps to be taken when casting a soil impression?
uranmaximum [27]
Photograph the impression, frame the impression, pour the cast, remove the cast is the one that describes the correct order of steps to be taken when casting a soil impression. The correct option among all the options that are given in the question is the second option or option "B". Casting is a great method for preserving some kind of impression to be looked at in the future.
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What is the era of the multicellular algae
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its the phanerozoic era

3 0
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