Ants and aphids often live near each other. the ants feed on the wastes produced by the aphids, and the aphids are protected from predators by the presence of the ants. what type of relationship is this? a. mutualism b. parasitism c. commensalism d. detrivism

Is a hamster and guinea pig part of the same species ?

Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.