Question

A)

A population undergoing logistic growth should reach it's maximum growth rate when...

		the population is equal to the carying capacity.
		the population size is very small but not quite zero.
		the population size is farthest from the carying capacity.
		the population is half of the carying capacity.
		the carying capacity is changing rapidly.

B)

Trophic efficiency is

		the percentage of production transferred from photosynthesis to any higher trophic level.
		a measure of how nutrients are cycled from one trophic level to the next.
		about 10% in for most trophic levels in most ecosystems.
		the ratio of net secondary production to assimilation of primary production .
		usually greater when lignin and cellulose are abundant and nitrogen is poor.

C)

Air masses rising from the earth’s surface at approximately 60 degrees north and south of the equator create what conditions at the earth's surface?

		arid climate
		high precipitation
		an increased temperature
		unusually constant temperature
		all of the above

D)

Biomes are defined by climate and vegetation. One reason for this is that the climate of a particular environment is greatly influenced by the dominant plant types in the environment.

True

False

Answer 1

1. Answer: Option A is correct
Explanation:
Carrying capacity = The maximum population size an ecosystem can indefinitely maintain
The population growth seizes once it reaches the carrying capacity

2. Answer: Option C is correct
Explanation:
Only 10% of the energy is transmitted from one trophic level to the next
Trophic efficiency = 10%