Population ecology

What type of factor has an increasing impact as the population size increases?

• density-independent

• density-dependent

• cohort effect

• survivorship factor

Tags

NGSS.MS-LS2-4

Which of the following are density dependent factors?

• competition for resources

• predation

• disease

• natural disasters

Which of the following are examples of a density independent factors?

• forest fire

• seasonal cycles

• storms

• disease

Tags

NGSS.MS-ESS3-2

Factors like predation can have a positive benefit to the population of prey organisms because predators tend to keep prey populations below their ___________.

• carrying capacity

• sustainibility number

• exponential growth point

• competition level

Tags

NGSS.MS-LS2-4

As a population of a species increases within a territory, which of the following most likely also increases?

• Immigration

• Food supply

• Carrying capacity

• Competition

Tags

NGSS.MS-LS2-4

What type of growth model is shown in image A?

• Exponential

• Logistic

Tags

NGSS.HS-LS2-1

What type of growth model is shown in image B?

• Exponential

• Logistic

What point on the graph represents carrying capacity?

• a

• b

• c

• d

Tags

NGSS.HS-LS2-1

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

which statement sounds accurate based on the graph data. 

• The zebra and lions do not affect each other
• when lions population increases, so does the zebra population
• When the zebra population increases, it causes the lion population to also increase
• when zebra populations go down, the zebra population goes up. 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4