Relative abundance is to count all individuals of each species in a number of sample plots within a community and determining what percentage each contributes to the total number of individual of all species.

A. 对
B. 错

A surprising prediction of the pradation model is that increase in r of prey growth leads to an increase in predator population, not the prey.

A. 对
B. 错

Factors can INCREASE oscillation of predator-prey models.

A. 对
B. 错

The proportions of each individual in each age class is age structure.

A. 对
B. 错

The purpose of life table is to provide a clear and systematic picture of mortality and survival within a population. Can also be used to simulate population size change.

A. 对
B. 错

Intrinsic rate of increase can NOT be estimated from the life table.

A. 对
B. 错

Birth rate and survivorship determine net reproductive rate。

A. 对
B. 错

Ecosystem have ( )major food chains

A. one
B. two
C. three
D. four

Assume a population, at t=0, population size is N(0), ratio of population size change in one year to the size of the proceeding year. This model is ( )

A. geometric growth model
B. exponential growth model
C. liner growth model
D. logistic growth model

Ratio of carbon fixed (photosynthesis) per unit of water lost (transpiration) is called ( )