Env Sci ch8 -Populations Notes

Env Sci ch8 -Populations Notes

Multiple Select

What is a population?

• Same species

• same place

• same time

• same sex

Multiple Choice

Which of the following is used to calculate the population growth rate

• Death rate-birth rate

• Birth rate - death rate

• Birth rate + death rate

• death rate + birth rate

Multiple Choice

A mosquito has a ______________ reproductive potential

• High

• Low

Open Ended

Can a population grow exponentially forever? Why or why not?

Multiple Select

Which of the following are limits to population growth

• Food availability

• Habitat availability

• Mate availability

• High Birth rates

Open Ended

What is carrying capacity?

Multiple Select

Which of the following is an example of density dependent population control

• Food availability

• Disease

• Predation

• Earthquake

• Volcanic eruption

Multiple Select

Which of the following is an example of density independent population control

• Food availability

• Disease

• Predation

• Earthquake

• Volcanic eruption

Multiple Choice

A beaver lives in small dams built by rivers

• Habitat

• Niche

Multiple Choice

A beaver is an ecosystem engineer as it builds other habitats and supports other organisms

• Habitat

• Niche

Multiple Choice

lions and hyenas competing for prey

• Predator-prey

• Competition

• Parasitism

• Commensalism

• Mutualism

Multiple Choice

intestinal worms feed on their hosts

• Predator-prey

• Competition

• Parasitism

• Commensalism

• Mutualism

Multiple Choice

Remoras clean sharks fins and remove parasites, while sharks provide the remoras with protection from predators.

• Predator-prey

• Competition

• Parasitism

• Commensalism

• Mutualism

Multiple Choice

The deer and coyote population interactions in North America

• Predator-prey

• Competition

• Parasitism

• Commensalism

• Mutualism

Multiple Choice

Nurse plants are larger plants that offer protection to seedlings from the weather and herbivores, giving them an opportunity to grow.

• Predator-prey

• Competition

• Parasitism

• Commensalism

• Mutualism

Open Ended

What is demography?

Multiple Select

What causes the human population to increase rapidly after 1800

• Introduction of farming

• agricutlureal revolution

• industrial revolution

• advancement in medical system

Open Ended

How do you think the U.S population is changing? What are good areas for jobs and businesses to invest it?

Multiple Choice

This age-sex pyramid is showing

• Slow growth

• rapid growth

• declining population growth

Multiple Choice

This age-sex pyramid is showing

• Slow growth

• rapid growth

• declining population growth

Multiple Choice

This age-sex pyramid is showing

• Slow growth

• rapid growth

• declining population growth

Multiple Choice

This age-sex pyramid is showing

• Slow growth

• rapid growth

• declining population growth