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Paladinen [302]
3 years ago
9

Genetic variation _____.a. is created by the direct action of natural selectionb. must be present in a population before natural

selection can act upon the populationc. arises in response to changes in the environmentd. tends to be reduced by when diploid organisms produce gametes
Biology
1 answer:
Julli [10]3 years ago
5 0

Answer:

The correct answer is b. must be present in a population before natural selection can act upon the population

Explanation:

Genetic variation can be caused by mutation, recombination between chromosomes during meiosis and by fusion of two genetically different gametes during sexual reproduction.

This genetic variation is necessary for the evolution of any population. Natural selection acts on every individual and it decreases the frequency of those alleles that are not suited for the environment and increase the frequency of those alleles which helps the individual to survive in the changing environment.

Therefore genetic variation must be present in the population before natural selection act on the.

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The area around a pond is cooler than the rest of the forest. Which term describes the area around the pond?
oksano4ka [1.4K]

The term microclimate best describes the area around the pond.

<h3>What is Pond?</h3>

A pond may be defined as an aquatic habitat which is a tiny body of still water originated naturally or by artificial norms. It is usually smaller than a lake.

A microclimate may be defined as a climate of a small area or a distinct place within a location as distinguished from the surroundings of the complete area.

A microclimate usually involves a very smaller area in contrast to determining the climate of a particular location.

The complete question is as follows:

The area around the pond is cooler than the rest of the forest. Which term describes the area around the pond?

  • Biome
  • Microclimate
  • Macroclimate

Therefore, the correct option for this question is B, i.e. microclimate.

To learn more about Microclimate, refer to the link:

brainly.com/question/3929953

#SPJ1

6 0
2 years ago
Each of the following traits is found in a bipedal hominin EXCEPT: Group of answer choices A c-shaped spine. A bowl shaped pelvi
posledela

Answer:

A c-shaped spine.

Explanation:

The correct answer is - A c-shaped spine.

Reason -

A c-shaped spine is a trait of Quadri-pedal spine not of bipedal spine.

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feeling pain, hunger, thirst, sleepiness, and being aware of our thoughts and emotions are all examples of ________ stimuli.
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Feeling pain, hunger, thirst, sleepiness, and being aware of our thoughts and emotions are all examples of Internal stimuli.

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