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Anika [276]
4 years ago
9

What is permafrost?

Biology
2 answers:
aleksandrvk [35]4 years ago
6 0

Answer:

A. Layer of soil that always stays frozen

Ad libitum [116K]4 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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nevsk [136]

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Explanation:

Three major histological changes occur in the glomeruli of pateints with diabetic nephropathy. First, mesangial expansion is directly induced by hyperglycaemia, possibly through increased matrix production or glycation of matrix proteins. Second, thickening of the glomerular basement membrane (GBM). Third, glomerular sclerosis is caused by intraglomerular hypertension (brought by dilatation of the afferent renal artery or from ischemic injury induced by hyaline narrowing of the vessels supplying the glomeruli).  The important change in diabetic glomerulopathy is increase of extracellular matrix. The earliest morphological anomaly in diabetic nephropathy is the thickening of the glomerular basement membrane and expansion of the mesangium due to the accumulation of extracellular matrix.

5 0
4 years ago
How does an symbiosis differ from a predator-prey relationship?
Andrew [12]

Answer:

Symbiosis is where no organism is killed in the relationship.

Parasitism: The host is harmed but not killed.

Mutualism: Both organisms are benefitted

Commensalism: One organism is benefitted, the other is not effected

In predation, the prey is killed and eaten by the predator for energy.

Sometimes you may see that they consider predation a symbiotic relationship, but not always.

6 0
4 years ago
Sound is created by our vocal cord due to
Marizza181 [45]

Answer:

c

Explanation:

for me Vibration in throat

8 0
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This nutrient is not abundant, but it is essential to life. It is part of DNA and RNA and a component of bones and cell membrane
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Hope that helps!
3 0
3 years ago
Read 2 more answers
Classify the statements below as describing proto-oncogenes or tumor suppressor genes. 1. Some products of these genes normally
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<span> 2. These genes code for proteins that normally promote cell division. </span>

DNA genetic code  is copied in a process called transcription when the cell needs to make some proteins that it needs, that is during the process of protein synthesis.

In the cell nucleus, transcription occurs when coded information  is copied (transcribed)  from DNA onto messenger RNA (mRNA)  with the help of an enzyme called RNA polymerase.

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