L.3

Plants use CO2 in the process of ___________________ to make ___________ and oxygen.

• cellular respiration, water

• photosynthesis, glucose (sugar)

• photosynthesis, water

• cellular respiration, glucose (sugar)

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Animals use oxygen in the process of _______________ and make more CO2.

• photosynthesis

• cellular respiration

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Animals and plants cannot directly use all of the nitrogen found in our atmosphere.

• True

• False

Which of the following is in order from largest to smallest?

• ecosystem – community – population – organism

• ecosystem – population – community – organism

• ecosystem – community – organism – population

Which of the following is a density-dependent limiting factor?

• human activities

• migration

• natural disaster

• unusual weather

Tags

NGSS.MS-LS2-4

Which of the following is a density-independent limiting factor?

• predation

• natural disaster

• parasitism

• disease

Which statement about parasitism is most correct?

• Both organisms benefit.

• One organism benefits and the other is not affected.

• Neither organism benefits.

• One organism benefits and the other is negatively affected.

Which shows the correct flow of energy through this simple food chain?

• fox → grass → rabbit

• grass → fox → rabbit

• grass → rabbit → fox

• rabbit → grass → fox

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where is the largest amount of energy in a food web?

• scavengers

• producers

• decomposer

• consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Bees and butterflies help pollinate plants, enabling them to reproduce while getting nectar from those plants. Which is best represented by this relationship?

• mutualism

• predator and prey

• parasitism

• competition

Tags

NGSS.MS-LS2-2