Which of the following is an example of a biotic factor?

• Rocks

• Water

• Sunlight

• Dead squirrel

Tags

NGSS.MS-LS1-4

What does the term 'abiotic' refer to?

• Living things

• Once living things

• Microorganisms

• Nonliving things

Tags

NGSS.MS-LS2-3

Which ecological level includes all the living and nonliving things in a specific area?

• Ecosystem

• Biome

• Community

• Biosphere

Tags

NGSS.MS-LS2-3

What is the smallest level of ecological organization?

• Biosphere

• Community

• Individual

• Biome

What is a limiting factor?

• A factor that has no effect on population size

• A factor that increases population size

• A resource that is scarce

• A resource that is abundant

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Carrying capacity refers to:

• The total number of species in an area

• The average number of individuals in an area

• The minimum number of individuals an area can support

• The maximum number of individuals an area can support

What happens to a population when it exceeds its carrying capacity?

• It stabilizes

• It declines

• It continues to grow

• It remains unchanged

In a carrying capacity graph, what typically happens after a population overshoots its carrying capacity?

• The population stabilizes immediately

• The population continues to grow

• The population drops below carrying capacity

• The population remains constant

What effect do predators have on the population of their prey?

• Increase the prey population

• Decrease the prey population

• Have no effect on the prey population

• Cause the prey population to fluctuate randomly

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What would likely happen to the resources in an ecosystem if there were no predators?

• Resources would decrease

• Resources would fluctuate randomly

• Resources would increase

• Resources would remain the same

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4