LS.8.2.1 Organization of Ecosystems Review

Multiple Choice

What is the difference between the biotic and abiotic factors?

• Biotic factors are living things and abiotic factors are nonliving things.

• Biotic factors are nonliving things and abiotic factors are living things.

Multiple Choice

All living things or organisms in an ecosystem are

• None

• biotic factors

• abiotic factors

Multiple Choice

Biotic can be defined as

• the living parts of an environment

• non-living parts of an environment

• rocks and water

• snakes and water

Multiple Choice

A squirrel's habitat in a dead log is considered a _____factor

• Biotic

• Abiotic

• cool

• secret

Multiple Select

Select ALL the biotic factors

• Rotten log

• water

• dragon fly

• bacteria

• lily pad

Multiple Choice

Which of the following is NOT a biotic factor?

• Coyote

• air

• elephant

Multiple Choice

All of the animals, plants, fungi, and microorganisms in a forest are a(n)...

• organism

• population

• community

• ecosystem

Multiple Choice

The Sahara Desert is an example of a(n)...

• organism

• population

• community

• ecosystem

Multiple Choice

A giraffe is an example f a(n)...

• organism

• population

• community

• ecosystem

Multiple Choice

Which of the following best describes a population?

• all types of organisms living in the same place

• all the red birds in an area

• Some of the same species in the same area at the same time

• all members of the same species

Multiple Choice

All of the animals, plants, fungi, and microorganisms in a forest are a(n)...

• organism

• population

• community

• ecosystem

Multiple Choice

Limiting factors are sometimes helpful because they can keep the population from getting too large.

• True

• False

Multiple Choice

When there is a lack of resources such as food, water, sunlight, shelter, and space this is often called __________.

• limiting factors

• wet

• messy

• found in rocks

Multiple Choice

If there is more food than usual in an ecosystem, then...

• Populations will stay the same

• Populations will decrease

• Populations will increase

Multiple Choice

Any thing or organism that regulates the size of a population of another organism is known as __________.

• a limiting measure

• a limiting factor

• factorization

• materialization of precipitation

Multiple Choice

What would happen if the population of hawks suddenly increased? How would it affect the other organisms in the ecosystem?

• The snakes would decrease due to more hawks eating them
• All of the population of organisms would increase
• The biotic factors in the ecosystem would increase
• The hawks predators would decrease

Multiple Choice

If a population of gazelle decrease, the population of cheetahs will...

• Decrease

• Increase

• Stay the same

• Cheetahs don't eat gazelle

Multiple Choice

True or False: A natural disaster is an example of a limiting factor.

• True

• False

Multiple Choice

If humans destroys all of the Sea Turtles nesting sites, what is going to happen to the Sea Turtles?

• Increase

• Decrease

• Stay the same

• Sea Turtles don't need to nest