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dimulka [17.4K]
2 years ago
5

How do vasoconstriction and vasodilation contribute to the homeostasis of body temperature ?​

Biology
1 answer:
Zolol [24]2 years ago
3 0
Blood vessels, which lead to the skin capillaries, become narrower they constrict which allows less blood to flow through the skin and conserve the core body temperature. This is called vasoconstriction.
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An assemblage of local plants, animals, and insects covering a large area such as a tropical rainforest or a grassland is called
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3 years ago
Evolution can be guided by random processes. What is the effect called when some genotypes are lost in a small population over t
soldi70 [24.7K]

Answer:

Genetic drift

Explanation:

Genetic drift is defined as the random change in allelic frequencies from one generation to the other.

Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population, meaning that this effect is inversely proportional to the population size. Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to <u>randomly</u> fixate one of the alleles. Low-frequency alleles are the most likely to be lost. Genetic drift results in a loss of genetic variability within a population.  

Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.

5 0
3 years ago
Imagine you are an engineer who needs to test a scale model of a
FinnZ [79.3K]

Answer:

The problem will be because:

  • <u>The error in the construction of the bridge will be actually 40 cm</u>.

Explanation:

When you, as an engineer, listen about a scale 1/20, it means that for each 1 cm in the model, it will be 20 cm in the real footbridge (20 times upper to the scale model), then how the error in the model is 2 cm, the real error is 40 cm, in this case, imagine that you didn't know that the bridge will have an error of 40 cm, which is approximately 1,31 ft, <em><u>from a side of the bridge you begin with the correct measure, and the other side you use the measure with the error of the 40 cm, the result is that when you going to finish the bridge in the center, this won't match, making more expenses to correct that big error</u></em>.

8 0
3 years ago
Why would engulfing these smaller prokaryotic cells be an advantage to the larger prokaryotic cells? A) The smaller prokaryotic
Lana71 [14]

Answer:

The answer is D

Explanation:

3 0
3 years ago
PLEASE HELP MEEE<br>Cells that can differentiate into a variety of cell types are called _____<br>​
Pani-rosa [81]

Answer:

pluripotent

Explanation:

A cell that can differentiate into all cell types of the adult organism are called

"pluripotent". Like cells are named meristematic cells in higher plants and embryonic stem cells in animals, though some groups report the presence of adult pluripotent cells.

3 0
3 years ago
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