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Elden [556K]
3 years ago
14

1. Define fitness as it used to describe adaptation

Biology
1 answer:
aliya0001 [1]3 years ago
3 0

Answer:

In terms of adaptation, fitness refers to the ability of an organism to survive and reproduce in a constantly changing environment.

Adaptive traits are very much important in a constantly changing environment as they increase the chances of survival of a population in the environment.

For example, Darwin's finches adapted to develop different types of beaks in order to get nutrition in different environments. Long necks of giraffes are also considered as a result of adaptation which helps them get the food located high on trees.

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Because the makeup of a biome is dependent on its climate, biomes are often regarded as a synonymous with climate zones.

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When plants make flowers, gene A is expressedin whorls 1 and 2, gene B is expressed in whorls 2 and 3 and gene C in whorls 3 and
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Answer:

The correct answer would be option D) no gametes.

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The ABC model of the flower was formulated to describe the collection of genetic procedures that determines floral organs in several plants. These species consist of four whorls which are sepals, petals, stamens, and carpels. These whorls are expressed by the expression of a number of genes present in each whorl or verticli.

Gene A is solely responsible for the sepals while the co-expression of A and B genes are responsible for the petals. The identity of the stamens is expressed by B and C and the carpels require C and D genes to be active.

The homozygousity for a normal mutation in gene C will lead to inactive or lack stamens and carpels, which are male and female reproductive organs. These are an important structure for forming gametes.

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B

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