Unit Test Answers

Identify the interaction described below. One organism benefits while the other is killed.

Two species need the same resource, which is limited.

Two male deer will fight each other for the opportunity to mate with a female.

An owl catches a mouse and eats it for dinner.

Tapeworms enter a human’s intestines through contaminated water and steal nutrients from the human.

Remora sharks attach themselves to whales by way of an adhesive disk on their dorsal surface. They then feed on the scraps from the whale’s meals.