The portion of the blastoderm-stage embryo which will give rise to most ectodermal, mesodermal, and endodermal tissues is called the:

TLS Online TPP Program

#Question id: 12777

#Unit 10. Ecological Principles

Which of the following is a density-independent factor limiting human population growth? 

TLS Online TPP Program

#Question id: 12778

#Unit 10. Ecological Principles

A population of white-footed mice becomes severely overpopulated in a habitat that has been disturbed by human activity. Sometimes intrinsic factors cause the population to increase in mortality and lower reproduction rates in reaction to the stress of overpopulation. Which of the following is an example of intrinsic population control?

TLS Online TPP Program

#Question id: 12978

#Unit 10. Ecological Principles

Why is territoriality an adaptive behavior for songbirds maintaining populations at or near their carrying capacity? 

TLS Online TPP Program

#Question id: 12979

#Unit 10. Ecological Principles

Consider several human populations  of  equal size  and  net  reproductive rate, but  different in  age  structure. The population that is likely to grow the most during the next 30 years is the one with the greatest fraction of people in which age range?

TLS Online TPP Program

#Question id: 12980

#Unit 10. Ecological Principles

The following questions refer to Figure which depicts the age structure of three populations.

Which population is in the process of decreasing?

TLS Online TPP Program

#Question id: 12981

#Unit 10. Ecological Principles

The following questions refer to Figure which depicts the age structure of three populations.

Which population appears to be stable?