Question

which of the following characteristics is is mainly responsible for diversification of insects on land?
a. segmentation,
b.Bilateral symmetry,
c. Exoskeleton,
d.Eyes.​

Answer 1

ANSWER

Insects are small in size and hence they are subjected to constant threat from the surrounding. For example, if the environment is dry, the body of the insects can easily become dry. Arthropods, including insects, used to live in the marine environment. Some of them migrated to the land and diversified to a large variety of insects that are living now successfully. One reason for this successful evolution to the land-based evolution of the insects is the development of exoskeleton. In contrast, other animals like mammals, birds etc. have an internal bone structure. The insect body is prevented from drying due to the presence of exoskeleton made up of chitin. Hence, the correct answer is the option A.

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Answer 2

Answer:

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c) exoskeleton.

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