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Gwar [14]
3 years ago
6

paragraph about how genetic variation and environmental pressures can cause a change in population just a simple paragraph

Biology
1 answer:
AlladinOne [14]3 years ago
3 0
Genetic variation in a population allows for phenotypic variation, meaning that different traits exist in the same population. When the environment changes, the members of the population are tested by natural selection with regards to how well adapted their specific traits are to the new environment. If the traits they have do not suit their environment, this results in reduced survival and fitness, leading to less of that trait in the population. However, if the traits they have are adapted to the environment, they become naturally selected for with better survivability and fitness (leading to a higher frequency of that trait in the population). Thus, evolution has occurred.
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The post prandial bloodstream will have higher levels of what
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Penelope is adding fractions while taking a math test. What part of her brain is at work?
Jobisdone [24]

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Which answer places the following events in proper order for pulmonary ventilation?
MArishka [77]

Answer:

The sequence is b, a, d, c.

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Pulmonary ventilation may be defined as be defined as the simple process of intake of oxygen and exhale of carbon dioxide known as breathing. Diaphragm contracts during inspiration and relax during exhalation.

The pulomonary ventilation occurs when the skeletal muscle contraction occur by the stimulation from the brainstem nuclei. This leads to the changes in the volume of the thoracic cavity. The thorax changes its shape by contraction and relaxation, this leads to the pressure change. Then air flows down the pressure gradient.

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6 0
3 years ago
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vlada-n [284]

<u>Answer:</u>

Ecosystem is the level of organization which includes a community, population, and an individual.

<u>Explanation:</u>

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Synonymous (silent) mutation: it causes no change, the same aminoacid is encoded.

Single nucleotide insertion or deletion: changes the entire structure of the protein because it shifts the reading frame.

Three nucleotide deletion: one aminoacid will no longer be part of the protein, if this aminoacid was located, for example, on the active site of an enzyme, the protein could lose its function.

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4 0
3 years ago
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