LS 2.1

Why are plants an important part of the ecosystem?

• Plants are a source of oxygen for the other organisms in the ecosystem.

• Plants produce carbon dioxide that is a nutrient for other organisms in the ecosystem.

• Plants compete with animals for habitat space in the ecosystem.

• Plants absorb harmful chemicals and remove all pollution in the ecosystem.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Humans are a part of the carbon cycle. How does most carbon enter and leave the human body?

• Carbon enters the body when air is breathed in and leaves the body dissolved in sweat on the skin’s surface

• Carbon enters the body when air is breathed in and leaves the body as a waste product of cellular respiration.

• Carbon enters the body when food is consumed and leaves the body dissolved in sweat on the skin’s surface

• Carbon enters the body when food is consumed and leaves the body as a waste product of cellular respiration.

A community of interacting organisms and their physical environment is called a ______________.

• Desert

• Home

• Ecosystem

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

A ____________ is an organism that breaks down natural materials.

• producer

• decomposer

• consumer

Plants make their own food through a process called _________________.

• photosynthesis

• energy conversion

• sun power

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What three things are needed for photosynthesis? (pick ALL correct answers)

• Water

• Sunlight

• Carbon Dioxide

• Oxygen

• Glucose(sugar)

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What two things are created from photosynthesis? (Pick ALL correct answers)

• Water

• Sunlight

• Carbon Dioxide

• Oxygen

• Glucose(sugar)

Tags

NGSS.MS-LS1-6

What do all organisms need to survive? (Pick ALL correct answers)

• Food

• Water

• Shelter

• Clothes

Tags

NGSS.MS-LS2-1

A _____________ is a single path showing how energy moves through living organisms.

• food chain

• food web

• ecosystem

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A _____________ shows multiple paths energy moving through living organisms.

• food chain

• food web

• ecosystem

Tags

NGSS.MS-LS2-3