Understanding Populations

Anna is working on finding the patterns of demographic variation within North America’s populations. What is Anna working on?

• population structure

• population size

• population density

• population growth

Tags

NGSS.MS-LS2-4

Which statement is true about the relationship between carrying capacity and population size?

• If a population is more than the carrying capacity, it leads to a positive growth rate and increased population.

• If a population is less than the carrying capacity, it leads to a negative growth rate.

• If a population is less than the carrying capacity, it leads to a positive growth rate and increased population.

• If a population is more than the carrying capacity, it leads to a neutral growth rate

Two grizzly bears are fighting over a fish to feed themselves. What kind of interaction is this scenario, which works as a limiting factor in the bears’ survival?

• apparent competition

• interference competition

• exploitation competition

• mutualism

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which growth model is a realistic representation of population growth?

A realistic representation of population growth is the ___________ growth model.

Tags

NGSS.HS-LS4-2

The scientific study of human populations is called

• Populography

• People science

• Humanology

• Demography

Tags

NGSS.MS-ESS3-4

What is demography primarily focused on studying?

• Microbial populations

• Human populations

• Plant populations

• Animal populations

Population or Sample?

A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then she tests their tensile strength.

• Population

• Sample

Population or Sample?

A survey of 1353 American households found that 18% of the households own a computer.

• Population

• Sample

Select the type of migration or dispersal to the image of the species that follows it.

• daily movement

• passive dispersal

• one return journey

• one direction only

Tags

NGSS.MS-LS1-4

How does dispersal help different species? Dispersal helps different species to increase their range of places, thereby helping to increase their population _____ in different regions.

• size

• life

• health

Tags

NGSS.MS-LS2-2