Which statement best describes ecological succession? A. It is always caused by human intervention.
B. It occurs after a disturbance.
C. It never occurs in a predictable pattern.
D. It is a series of rapid changes in an ecosystem.

Defend or refute the argument that the government has too large a presence in the agriculture industry.

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.