Question

1.Explain the accumulation of variation ?
2.What is the importance of variation ?
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Answer 1

Answer:

1- Accumulation of Variations during Reproduction

Variation appear during reproduction whether organisms are multiplying asexually or sexually. Each generation provides the next generation with a common basic body design and some subtle changes or variations.

2- Here comes the role of variation. Variations in species help them to adapt themselves to that particular environment and give them a chance of survival. For example, thermophilic bacteria are variants that are resistant to extreme temperature. They have a chance of survival in high temperate zones while others die.

Answer 2

Answer:

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☆Explain the accumulation of variation ?

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⭐Variation may be defined as manifestation of the differences between individuals. It may be effected either through genetic alternation of the individuals or it may also be resulted due to environmental pressure. However, only the heritable variations are important for evolution.

Explanation:

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☆What is the importance of variation ?

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⭐Variation is important because it causes evolution and is the basis of heredity. It is advantageous to a population as it enables few individuals to adapt to the environment changes thus, enabling the survival of the population.