Question

which statement is an example of mutualism? a deer tick feeds on the blood of a deer, and the deer loses blood and nutrients. a hookworm feeds on the small intestine of a dog, causing the dog to lose weight and become weak. a koala bear eats eucalyptus leaves, and it is unharmed by the poison in the leaves. a plover bird feeds on food stuck in a crocodiles teeth, and the crocodile gets its teeth cleaned in the process.

Explanation:

Mutualism is a symbiotic relationship where both organisms benefit. In the case of the plover bird and the crocodile, the bird gets food from the food stuck in the crocodile's teeth, and the crocodile gets its teeth cleaned. The other options represent parasitism (tick - deer, hookworm - dog) or a one - sided relationship (koala - eucalyptus).

Answer:

A plover bird feeds on food stuck in a crocodile's teeth, and the crocodile gets its teeth cleaned in the process.