BIOLOGY 1 Discuss

In what order do the following structure develop during the metamorphosis...

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Question 133
A

1,2,3,4,5

B

1,5,2,4,3

C

2,1,3,4,5

D

5,3,4,1,2

Explanation

Option C is not correct because it suggests that internal gills develop before external gills during the metamorphosis of the toad. However, the opposite is true - external gills develop first, followed by internal gills. This is because external gills are necessary for respiration in the aquatic environment where the tadpoles live, while internal gills develop later as the tadpole begins to transition to a more terrestrial lifestyle. Therefore, option A is the correct answer, where external gills develop before internal gills.


Correct option: A

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