Changing Populations

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

If there is more food than usual in an ecosystem, then the population will mostly likely...

• stay the same

• decrease

• increase

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?

• Squirrel Population

• Sunlight

• Grass available

Tags

NGSS.MS-LS2-1

When organisms move out of the population, this is known as

• emigration

• abandonment

• immigration

• succession

What is happening in a population as it decreases?

• more emigration occurs 

• more immigration occurs

• the birth rate and death rate remain the same

What happened to the wolf population between 1980 and 1982?

• it increased rapidly

• it decreased rapidly

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

What is the term for the maximum population size that an environment can sustain indefinitely?

• Carrying capacity

• Biotic potential

• Population density

• Ecological footprint

Which of the following factors is most likely to cause a population to decrease?

• Increased birth rate

• Increased immigration

• Increased emigration

• Increased food supply

Tags

NGSS.MS-LS2-4

In a predator-prey relationship, what is the likely effect on the prey population if the predator population decreases?

• The prey population will decrease

• The prey population will increase

• The prey population will remain the same

• The prey population will become extinct

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4