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EleoNora [17]
3 years ago
15

Helper t cells and regulatory t cells ________.

Biology
1 answer:
hjlf3 years ago
4 0
It has to be a , T cells are are your killer cells
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In the nebular hypothesis, why did the nebula start to collapse?
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The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger. Eventually, the clump of dust and gas gets so big that it collapses from its own gravity.

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The cytoplasm is the part of the cell in which
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2 years ago
A student is measuring the effect of different temperatures on the effect of enzymes in biological systems. What temperature ran
viktelen [127]

Answer:

A. 25 °C, 30 °C, 35 °C, 40 °C, 45 °C  

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Each enzyme has a temperature at which it works best. In humans and many animals, that temperature is around body temperature (37 °C or 98.6 °F). Most enzymes are denatured and work poorly at 40 °C (104 °F).

That automatically eliminates Option B.

I would pick a temperature close to 37 °C (98.6 °F) and temperatures at intervals above and below that.

Option D is wrong because it includes no temperatures above body temperature.

Option C is wrong, because it includes temperatures of 45 °C and 55 °C, at which the enzymes will be denatured.

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8 0
3 years ago
Does Minnesota, Finland, and Russia have the same climate biome?
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3 years ago
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