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raketka [301]
4 years ago
11

PLEASE HELP!!!!!

Biology
2 answers:
Alborosie4 years ago
5 0
D. a cell nucleus divides
maksim [4K]4 years ago
4 0

Answer: d a cells nucleus divides

Explanation:

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Which units are used in a pyramid of biomass?
Ulleksa [173]

Answer:

g/m2 is the unit used in a pyramid of biomass. Kilocalories is Unit of measure for energy pyramids

7 0
3 years ago
What happens to an enzyme's structure as it<br> exceeds the typical human body temperature?
likoan [24]

Answer:

Enzyme structure begins to break down

Explanation:

The enzyme will begin to denature as the temperature in the body rises. Denaturing is when the physical structure of the enzyme loses its shape and prevents the lock and key of enzymes and substrates to occur.

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3 years ago
How much of the Earth’s water is usable as a freshwater resource?
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<span>How much of the Earth’s water is usable as a freshwater resource?

3%</span>
4 0
3 years ago
Why does the cell membrane of a plant growing in Canada have more unsaturated lipids than a plant growing in central Africa? It
Afina-wow [57]

The question is incomplete as it does not have the options which are:

  • greater the unsaturation, the lower the fluidity.
  • greater the unsaturation, the higher the melting temperature.
  • lower the unsaturation, the greater the fluidity.
  • greater the unsaturation, the greater the fluidity.
  • Canadians have developed plants with higher amounts of unsaturated fatty acids.

Answer:

Greater the unsaturation, the lower the fluidity.

Explanation:

The differences in the lipid content of the membrane of the plant cells in Canada and Africa can be accounted for the difference in the temperature of Canada and Africa.

The temperature in Africa is higher compared to Canada as a result of which the cell membrane increase saturated lipids which could keep the membrane normal whereas the Canada plants increase the unsaturated lipids which increase the fluidity of the membrane.

Thus, the selected option is correct.

4 0
3 years ago
Which of the following is a true statement about cells? *
KengaRu [80]

Answer:

The true statement would be: B

Explanation:

A would be wrong, because there are some cells that dont have a nucleus are called prokaryotic cells, these are ones that lack cells, so this answer is false.

C. All cells have a cell membrane, but some dont have cell walls.

D. Not all living things have more than one cell, they can have one cell.

3 0
4 years ago
Read 2 more answers
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