Ecosystems And Populations - Human Biology

A scientist is studying the flow of energy into and out of a rain forest as well as the usage of energy by the organisms that inhabit that area. This study would be at the level of a(n)

A) population.
B) biosphere.
C) community.
D) species.
E) ecosystem.

Answer

Question 2

(Multiple Choice)

Free

In a graphical representation of an organism's population growth in a given habitat, the growth rate for an organism whose population is increasing according to its biotic potential is best represented by a(n)

A) line with a negative slope.
B) S-shaped curve.
C) flat line (no slope) set at the carrying capacity of the environment.
D) exponential growth curve.
E) flat line (no slope) set at the equilibrium point of environmental resistance versus biotic growth potential.

Answer

Question 3

(Multiple Choice)

Free

Which one of the following statements accurately reflects the nature of mature communities?

A) Mature communities have more consumers than producers, because the producers are so efficient.
B) Mature communities develop very quickly.
C) Succession begins once a mature community has been established.
D) Mature communities are so well established that when disturbed, they quickly recover.
E) Mature communities are the most efficient in terms of energy utilization and exhibit the greatest species diversity.

Answer