When an animal cell is placed in a hypotonic solution,

it will gain water and may burst
it will lose water and shrink
it will remain the same size
the cell's reaction cannot be determined

it will gain water and may burst

The correct answer is -

it will gain water and may burst.

Explanation:

Hypotonic solution is the one that contains higher concentration of solvent (such as water) as compared to solute concentration.

Water always moves from area of high to low concentration through osmosis.

Thus, if an animal cell is placed in a hypotonic solution, it will gain water through osmosis, swell and may burst as they lack cell wall (unlike plant cell that have cell wall to prevent cell lysis due to osmosis).

Thus, first option is the right answer.

it is a learned trait

explanation:

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: