Population Dynamics

What causes competition to occur in an environment?

• Good conditions make resources plentiful.

• Organisms struggle for a limited resource.

• Members of a population have different roles.

• A population falls below the environment’s carrying capacity.

Tags

NGSS.MS-LS2-1

Without other changes to a population, which of the following will cause a population to increase in size?

• The birth rate equals the death rate.

• The birth rate is less than the death rate.

• The birth rate is greater than the death rate.

• The birth rate and the death rate both equal 0.

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-2

Which of the following is an example of an abiotic limiting factor on population size?

• water availability

• Availability of food

• disease

• predation

Tags

NGSS.MS-LS2-1

When individuals join a population

• Aliens
• migration
• Immigration
• Emigration

Carrying Capacity is

• the capacity of what one person can carry per day 
• how many animals you have in your daily bag limit at the end of the year
• wildebeest at a watering hole with zebras
• the maximum number of individuals that the environment can support

Tags

NGSS.HS-LS2-1

Is a fungal infection in frogs considered biotic or abiotic?

• biotic
• abiotic

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

A part of the environment that prevents a population from growing too large is a/n______________

• abiotic factor

• biotic factor

• limiting factor

Tags

NGSS.MS-LS2-4

The graph below represents the growth of a population of flies in a car? Which of the following statements best describes the graph?

• The fly population did not change.

• The fly population decreased, then increased.

• The fly population grew following the logistic growth model.

• The fly population grew following the exponential growth model.

Tags

NGSS.MS-LS2-4

Which of the following could be a density-independent limiting factor in the desert?

• number of prey

• food supply

• parasitism

• rainfall

Tags

NGSS.MS-LS2-4

Which point in this graph represents exponential growth?

• Point E

• Point A

• Point B

• Point C