California State University, Fullerton » Biology » Biology 252 - Principles of Ecology » Summer 2020

Question #1

The birth rate, b, is defined by the following equation(s):,,

A. b = Bt - Nt

B. b = r + d

C. b = Bt / Nt

D. b = r / d

E. b = r – d

Question #2

The carrying capacity of an environment is characterized as the maximum sustainable

A. finite rate of increase

B. population density

C. growth rate

D. resource availability

E. volume

Question #3

Exponential growth in a population occurs when

A. immigration exceeds emigration

B. carrying capacity is infinite

C. growth rate r is constant

D. birth rate exceeds death rate

E. growth rate r increases exponentially

Question #4

A population of rabbits contained 200 individuals in 2017 and 300 in 2018. What was its finite rate of increase, λ, over that one year?

A. 1.5

B. 0

C. 0.5

D. 1

E. 100

Question #5

A population of goats on an island is at carrying capacity. This means that the population growth is limited by

A. Resources

B. Intrinsic factors

C. Extrinsic factors

D. Density dependence

E. All of the above