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Rudiy27
3 years ago
6

How does the pressure in the chest cavity affect airflow?

Biology
2 answers:
Reika [66]3 years ago
8 0

Pressure, tightness, and squeezing is the answer :)

kipiarov [429]3 years ago
5 0
Pressure tightness and squeezing
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Identify one hormone directly involved in the human female reproductive system that could cause this problem
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The HCG hormone is the answer possibly
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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
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hram777 [196]
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3 0
3 years ago
Over 95% of incoming UV-B radiation is absorbed in the stratosphere. Please select the best answer from the choices provided
kramer

Answer:

True

Explanation:

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5 0
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Please help please thank you
Misha Larkins [42]

Answer:

Hi there!

The correct answer is igneous rock.

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5 0
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