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 = Bt - Nt

C. b = r – d

D. b = r + d

E. b = r / d

Question #2

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

A. growth rate

B. volume

C. population density

D. resource availability

E. finite rate of increase

Question #3

Exponential growth in a population occurs when

A. carrying capacity is infinite

B. immigration exceeds emigration

C. birth rate exceeds death rate

D. growth rate r is constant

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. 0

B. 1

C. 100

D. 1.5

E. 0.5

Question #5

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

A. Intrinsic factors

B. Extrinsic factors

C. Resources

D. Density dependence

E. All of the above