Question

Which signal type would provide the fastest communication between bats flying in a dark forest? a. chemical signals b. acoustical signals c. visual signals d. tactile signals e. electrical signals

Short answer

b. acoustical signals

Step-by-step solution

Analyze the conditions

Begin by considering the conditions. Bats fly in a dark forest, which means that visual signals will not be effective. Moreover, bats are not known for using tactile or electrical signals for communication.

Consider speeds of different signals

By simple knowledge and comparison of the speed of sound and the speed of chemical dispersion, it is easy to understand that sound travels faster than chemicals disperse. Thus, acoustical signals would reach the receiver faster compared to chemical signals, putting tactile and electrical signals aside.

Factor in bat capabilities

Finally, take into account that bats use echolocation, which involves them producing sound waves that bounce off objects to determine distances. Echolocation is based on acoustical signals, so it is reasonable to conclude that bats would use the same type of signals for communication.