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Anika [276]
3 years ago
9

What is permafrost?

Biology
2 answers:
aleksandrvk [35]3 years ago
6 0

Answer:

A. Layer of soil that always stays frozen

Ad libitum [116K]3 years ago
3 0

Answer:Layer of soil that always stays frozen

Explanation:permafrost are layer of soil that remain frozen, they contain soil,sands particles and rock that have been bound together by Ice. This happens when temperature is lowered in the soil below 0°C causing water between the rocks, cracks and soil to turn to ice.

Permafrost could be of detrimental effect when it decompose in warm temperature it could lead to release of gases that causes ozone layer depletion and release of some pathogen that are toxic to health. Permafrost covers a large area of land on the world.

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Definition: A thin, flexible, semipermeable barrier around the cell which regulates what enters and leaves
Anettt [7]
It’s a cell membrane
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2 years ago
What part do wildifres play in the life cycle of a forest?​
kolezko [41]

Answer:

Help new plants sprout :)

Explanation:

Forest fires burn away leaf and dead plant litter. It can also burn away invasive species or any diseased plants. Then, nutrients are returned to the soil which helps new plants sprout and thrive. Hope this helped !!

4 0
3 years ago
Which of the following activities would most likely be done by an anatomist?
Sonbull [250]

Answer:

comparing the effects of exercise intensity

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2 years ago
The human stomach secretes an enzyme known as pepsin. This enzyme breaks down proteins into smaller chemical molecules called pe
emmasim [6.3K]
The question here is, is glucose a protein? No, it's not; it's a carbohydrate.

So pepsin would not break it down: it would most probably not react with glucose at all, since pepsin breaks down proteins, not carbohydrates. <span />

3 0
3 years ago
Read 2 more answers
The genes for miniature wings (m) and garnet eyes (g) are approximately 8 map units apart on chromosome 1 in Drosophila. Phenoty
Anestetic [448]

The following phenotypic classes reflect offspring that were generated as a result of a crossover event

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  • miniature wings
  • garnet eyes

Explanation:

When the miniature wings and garnet eyes links up with the 8 map unit that are present between them. After that the presence of two recombinant classes must complement together and make 8% of total i.e. they contribute 4% each. together the parental classes make up to 92% by contributing 46% one.

This can be understood through a phenotypic ratio calculation, which can be expected from it.

wild type: 4% x 800 = 32

miniature wings: 46% x 800 = 368

garnet eyes: 46% x 800 = 368

miniature wings, garnet eyes: 4% x 800 = 368

5 0
3 years ago
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