Organisms and Ecosystem

What are the living and nonliving things in an environment or area?

• predator

• producer

• ecosystem

• abiotic factor

Tags

NGSS.MS-LS2-3

An organism that can make its own food

• decomposer

• producer

• consumer

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NGSS.MS-LS1-6

An increase in the population of an organism (living thing) could happen because of ??

• A series of severe weather events in the habitat

• A decrease in necessary resources available

• An expansion (increase) of living space

• An increase in animals that prey on the organism

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What data would be most helpful to support the claim that the population of a certain plant depends on the rainfall of the habitat?

• The average amount of water absorbed by a plant’s roots

• The amount of water the soil holds onto in the area where the plants live.

• Rainfall amounts and numbers of these plants in a certain habitat measured over several years.

• The heights and number of leaves produced by these plants under different moisture conditions

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is an ecosystem?

• A community of non-interacting organisms and their physical environment.

• A biological community of interacting organisms and their chemical environment.

• A biological community of interacting organisms and their physical environment.

• A community of non-interacting organisms and their chemical environment.

What is a habitat?

• The natural home or environment of an animal, plant, or other organism.

• The interrelationship of a species with all the biotic and abiotic factors affecting it.

• A biological community of interacting organisms and their physical environment.

• The natural home or environment of non-living organisms.

Tags

NGSS.MS-LS2-2

Spruce trees are typically found in the taiga. Their needle-like, evergreen leaves are adapted to -

• Withstand cold climates
• Prevent water loss
• Taste bad to herbivores
• All of these choices

A group of organisms of the same species living in the same area are called a/an __________.

• community
• habitat
• population
• ecosystem

An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph
• Producer
• Consumer
• Mutualist

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Why is carbon dioxide important for plants?

• Carbon dioxide gives plants their green color.

• Plants can release carbon dioxide into the air.

• Plants use carbon dioxide to make their own food.

• Carbon dioxide lets plants absorb their roots.