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Question
Only external segmentation is found in the which of the following class?
Only external segmentation is found in the which of the following class?
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Solution
The correct option is D Hirudinea
Segmentation in biology refers to the division of some animal and plant body into a series of repetitive segments. External segmentation in annelids is found in class Hirudinea. The body wall, nervous system, kidneys, muscles and body cavity are generally segmented. For example, leeches do not have bristles and the external segmentation of their bodies does not correspond with the internal segmentation of their organs. So, the correct answer is option C.
Segmentation in biology refers to the division of some animal and plant body into a series of repetitive segments. External segmentation in annelids is found in class Hirudinea. The body wall, nervous system, kidneys, muscles and body cavity are generally segmented.
For example, leeches do not have bristles and the external segmentation of their bodies does not correspond with the internal segmentation of their organs. So, the correct answer is option C.
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