Biology Ck-12: Population Structure

A population pyramid is an illustration that shows the distribution of which groups in population?

Age and Sex

_____ influences population growth.

Age-sex structure

_____ is the change in a population over time and can be quantified as the change in the number of individuals of any species in a population.

Population growth

The age-sex structure is represented by a(n) _____.

Population pyramid

The humans are one of the species that show _____ pattern of survivorship.

Type I

_____ survivorship curves are characterized by high survival in early and middle life, followed by a rapid decline in survivorship in later life.

Type I

Which of the following are types of survivorship curves?

all of the above

The age-sex structure never influences population growth.

false

Type III survivorship curves are typical of large animals, including humans, where parents produce relatively few offspring and provide them with a lot of care.

false

Graphs that illustrate the number of individuals of a population that are still alive at any given age are called _______________ curves.

survivorship

Death occurs ______________ for species with a moderate death rate.

uniformly throughout life