In order to survive in its environment, a single-celled organism uses a contractile vacuole to remove excess water that diffuses into its cell. Another species, a hydra, also excretes excess water. Both processes involve the use of energy. Based on this information, state whether these two organisms live in fresh water or salt water.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

do yall know the answer?

fossil's are like over rated rocks like low key not gonna lie i don't get why we can't just call them old rocks like for real i mean i call my grandpa and grandma that smh