“Abundance” describes the total number of _________ while “diversity” describes the number of _________.

Worldwide per capita use of water has

Species which are specialists

Wetlands are important to conservation efforts because

Hypnotics induce a state resembling natural sleep.

Intraspecific competition is competition among ________ for resources.

Which of the following scenarios are free from bias?

Life expectancy is the

__________ stimulate GABA receptors in the brain so one is calm without drowsiness.

What lung disease is characterized by a fluid-filled cavity, usually a collection of proteins, tissue debris, and infection?