Question

White tip reef sharks spend most of the day lying on the ocean floor. While remaining still, these sharks pump water across their gills. The movement of water across their gills is necessary for —
A) staying cool
B) accessing food
C) obtaining oxygen
D) avoiding predators

Answer 1

Answer:

A.) or C.)

Explanation:

Idk what is it i think it is C.) i hope am right

Answer 2

Answer:

The answer is C

Explanation:

Because in order for it to breath well it needs to move its gills