Migration and Population Distribution

__________ is the regular movement of individuals or populations each year during certain seasons. This leads to cycles of immigration and emigration as organisms leave and return.

All the organisms of the same species that live in the same area are called a ________.

• Cluster

• Herd

• Population

• Group

_________ describes how individuals are distributed, or spread, throughout their habitat.

• Population density

• Population distribution

The process in which individuals come into the population from somewhere else is called _______.

• Immigration

• Emigration

• Death

• All of the above

_________ is a type of emigration where offspring move away from their parents.

Which is a benefit of dispersal for some plant populations?

• It minimizes population growth

• It helps to prevent offspring from competing with parents

• It encourages competition between offspring and parents

• None

Populations gain individuals through births and ________.

• Inmigration

• Emigration

• Death

• All of the above

If r = population growth rate; b = birth rate; i = immigration rate; d= death rate; e = emigration rate, which of these equations most accurately describes population growth?

• r = (b+i) - (d+e)

• r = (d+e) - (b+i)

• r = (b+e) - (d+i)

• r = (b-e) + (d-i)

Tags

NGSS.HS-LS2-2

Which of the following is a primary factor influencing animal migration?

• Food availability

• Temperature

• Predation

• All of the above

Tags

NGSS.MS-LS2-1

What term describes the movement of individuals out of a population to another location?

• Immigration

• Emigration

• Migration

• Colonization