Limits to Population

Which of the following statements about biotic potential is TRUE?

• Biotic potential varies a great deal by species.

• Biotic potential is only reached when food is limited.

• The biotic potential of a large mammal is high.

• The biotic potential of insects tends to be low.

Which of the following is a density-dependent factor?

• flashfloods

• fire

• typhoons

• predation

The image (on the right) is a population graph from the predator-prey game. Green indicates grass, blue indicates rabbits, and red indicates wolves. The rapid growth in grass shown at the right of the graph is probably due to

• rabbits becoming extinct

• wolves controlling the rabbit population

• rabbits going on diets

• wolves becoming extinct

If a population for a certain organism is above the carrying capacity of an ecosystem, which of the following is a plausible outcome?

• the population will continue to grow because they will start migrating to other ecosystems

• the population will decline, as there is a limited number of resources in the ecosystem

• the population will decline because there will be an increase in predators

• the population will continue to grow until biotic potential is reached

It refers to the maximum capacity of an ecosystem to sustain a population of organisms without deteriorating.

• biological capacity

• biotic potential

• environmental potential

• carrying capacity

List two factors that have limited human population growth in the past.

Evaluate responses using AI:

OFF

Discuss the ways by which natural disasters (droughts, floods, hurricanes and fires) affect the population growth.

Evaluate responses using AI:

OFF

Which of the following is a limiting factor for marine organisms?

• Weather

• Natural Disaster

• Salinity

• Use of Pesticides

TRUE or FALSE.

Populations can grow indefinitely.

• TRUE

• FALSE

Match the following abiotic factor

• Pollution

• Ocean

• Altitude

• Land

• Salinity

• Human Activity