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umka2103 [35]
3 years ago
9

Why does a tundra lack trees? A. the animals eat it to quickly B. the permafrost has no soil C. the permafrost ground prevents d

eep root growth D. the ground is a glacier
Biology
2 answers:
OleMash [197]3 years ago
7 0
It is C the permafrost ground prevents deep root growth
Anastasy [175]3 years ago
7 0

The correct answer is C. The permafrost ground prevents deep root growth

Explanation:

Tundra is a biome characterized by cold temperatures, low vegetations (grasses, shrubs, mosses), and a subsoil covered by permafrost, which refers to a subsoil that has a temperature lower than 0° C and may contain ice. This permafrost is responsible for the presence of low vegetation and the lack of high vegetation such as trees, this can be explained as the low temperature along with possible ice prevents deep root growth and this stops trees and similar plants from obtaining nutrients and therefore thrive.  According to this, the reason tundra lack trees is that the permafrost ground prevents deep root growth.

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A que altura debe moverse un costal de cemento de 50kg para asegurar que su energía potencial sea de 10,500 j?
Juli2301 [7.4K]

Answer:

21 m

Explanation:

La energía potencial de un cuerpo es la energía que posee el cuerpo en virtud de su posición.

La energía potencial se da como;

E = mgh

Dónde;

m = masa del cuerpo

g = aceleración por gravedad

h = altura del cuerpo

Aquí necesitamos obtener la altura del cuerpo.

h = E / mg

h = 10500/50 * 10

h = 21 m

6 0
3 years ago
Human albinism is an autosomal recessive trait. Suppose that you find a village in the Andes where 1/4 of the population is albi
Aleks04 [339]

Answer:

500

Explanation:

According to the given information, the total number of albino people in the population= 1000/4 = 250.

Since albinism is an autosomal recessive trait, the genotype of albino people would be homozygous recessive. Therefore, the frequency of homozygous recessive genotype in the population (q2) = 250/1000= 0.25.

The frequency of recessive allele (q) = square root of 0.25 = 0.5

Since p+q=1. So, p (frequency of dominant allele) = 1-q = 1-0.5 = 0.5

Frequency of heterozygotes in the population= 2pq = 2 x 0.5 x 0.5 = 0.5 or 50%

Therefore, expected number of heterozygotes in the given population= 50% of 1000 = 500

7 0
4 years ago
What do lithium carbonate, carbamazepine (tegretol), and valproate (depakote) have in common?
NemiM [27]

All the mentioned drugs are mood-stabilizing drugs.

A mood stabilizer refers to a psychiatric pharmaceutical drug used in the treatment of mood disorders featured by sustained and intense mood shifts, usually borderline personality disorder, bipolar disorder type I or type II, and schizoaffective disorder.

The term mood stabilizer does not illustrate a mechanism, however, an effect. More accurate terminology is used to categorize these agents.

8 0
4 years ago
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6 0
3 years ago
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According to the principle of _______, a change in one species in a community results in a change in another.
oee [108]

The correct answer for above statement is:

<h3>A. coevolution</h3><h3>Explanation:</h3>

Coevolution is the method by which two or extra kinds emerge in tandem by exercising selection forces on each other. Coevolution happens when two or more species reciprocally influence each other's development.

6 0
3 years ago
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