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The world today derives the majority of its energy from which of the following sources?

Many people refer to Alfred Russel Wallace as the “father of biogeography.” Which of the following contributions led Wallace to achieve this title?

Tortoises in the Galápagos possessed neck lengths unique to each island. Neck lengths appear to be an adaptation to which selective agent?

Which of the following is an inaccurate statement about primary and secondary succession?

Biodiversity is important in that some organisms and ecosystems play a role in breaking down pollutants.

The gradualistic model of speciation is supported by many transitional forms.

Natural selection can favor directional, stabilizing, and disruptive selection in the same population simultaneously.

Hydropower and wind power are similar in that both are

Pollution is defined as

Preserving biodiversity can increase the value of land and the resources extracted from it.