Question

How many external gill pairs present in a newly hatched frog larva?

Answer 1

The life history of a common species of Rana is illustrated in Figure 1. The eggs are fertilized externally as they are laid in the water. The little larva which hatches in a few days has two pairs of long, branched, external gills projecting from the dorsal ends of the third and fourth visceral arches.

Answer 2

Answer:

Explanation:

2

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