Is the fins are for breathing?
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yes

Explanation:

Yes

Overall, our results demonstrate that the pectoral fins are capable of ventilating cutaneous surfaces and dissipating Po2 boundary layers, thus supporting the role of the pectoral fins as respiratory structures in larval fishes.

gametes or germ cells are haploid cells (example: sperm and ova) containing only one set (or n) number of chromosomes and autosomal or somatic cells are diploid cells containing 2n number of chromosomes.

1. desertification

2. captive breeding

3. black rhinoceros

4. renewable resources

explanation:

mark brainliest!