“Survival of the fittest” best describes which of the following mechanisms?

Freshwater constitutes what portion of Earth’s total water?

Plants consume oxygen at which stage?

Most of the contiguous United States (ie. the 48 states not including Alaska and Hawaii) is located on the ____ plate.

During aerobic respiration, mitochondria convert glucose and oxygen into the energy storage molecule ____.

Most convergent plate boundaries are located____.

Broadly speaking, as a country develops economically, how do dietary preferences change?

Fish swimming in schools is an example of __________.

Which of the following was not an impact of DDT use?

Organisms belonging to the ____ domain have complex cells, including a membrane-bound nucleus.