Population Dynamics

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

• water availability

• Availability of food

• disease

• predation

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

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.

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NGSS.MS-LS2-4

What type of interaction occurs when beech and maple trees are in the same forest? 

• cooperation
• competition
• cohabitance

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NGSS.MS-LS2-2

What type of interaction occurs when bees live in a hive?

• cooperation
• competition
• churros
• chimichangas

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NGSS.MS-LS2-2

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

• abiotic factor
• biotic factor
• limiting factor

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NGSS.MS-LS2-4

One factor that drives population changes is

• the availability of resources.
• predation.
• both a and b.
• none of the above.

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NGSS.MS-LS2-1

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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

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Owls and snakes eat mice and other organisms. What would happen to the mice population if the owl population decreased?

• The population would decrease, as the loss of owls as part of their diet is a limiting factor.

• The population would decrease, as shelters created by owl nests is a limiting factor.

• The population would increase, as competition for food is a limiting factor.

• The population would increase, as predation by owls is a limiting factor.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

A population is 

• a group of communities that exist in different places
• a group of organisms of one species that lives in the same area at the same time
• a group of people that populate one place at the same time on different planets

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

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NGSS.MS-LS2-1

NGSS.MS-LS2-4