Ecology Populations

The maximum number of individuals that can be supported by an ecosystem is known as the population's _______.

• exponential growth

• carrying capacity

• limiting factor

Which image best depicts UNIFORM dispersion in an environment?

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• 
• 

Tags

NGSS.MS-LS2-2

If a population has 46 births and 12 deaths during a year, will the popn size increase or decrease?

• increase

• decrease

Tags

NGSS.MS-LS2-4

A nature preserve is 100 square miles. If 300 elephants live in the nature preserve, what is its population density?

• 300 elephants/square mile

• 30 elephants/square mile

• 3 elephants/square mile

• .3 elephants/square mile

Which of the following populations is most likely to go extinct?

• a very small population in an unstable environment

• a moderate-sized population of r strategists

• a large population with lots of genetic variability

• all would be equally likely to go extinct

Tags

NGSS.MS-LS4-4

How many types of survivorship curves are there?

• 1

• 2

• 3

• 4

A good way to estimate the population size.

• mark-recapture

• count everyone of them

• satellites

• cameras

Which of the following is a density-dependent limiting factor?

• predation

• drought

• forest fire

• deforestation

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

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-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Look at each picture carefully. Decide if the picture shows a population or a community.

• Population

• Community