Is sea horse fish or a mammal​

it's a fish

because they live under water and have gills and a swim bladder

fish

Explanation:

it live in water and breathe through gills

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;