Heyy hmu with those answers hehe which trait shared by dolphins and bats possibly lead to the evolution of echolocation in these two animal groups? a) the need to move quickly through dark environments b) the need to be able to send sound waves through the air c) the need to be able to send sound waves through the water d) the need to communicate with other species through echolocation

A) the need to move quickly through dark environments

Explanation:

Both Dolphins and Bats have to create a system of echolocation because they needed a way to move on dark environmnets where they couldn´t see well enough, and the echolocation helped them to ubicate themselves through waves and reflection of those waves this created a new pair of "eyes" for them.

a

Explanation:

answerscientific theory;

well clustered together.

points close on a scatter diagram