NC 7 L 1 3

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

• True

• False

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which is true of the relationship between the grass and lion?

• The grass is the consumer and the lion is the producer.

• As the grass population increases, the lion population increases.

• As the grass population decreases, the lion population increases.

• As the grass population increases, the lion population remains

  the same.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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

What is a river basin?

• the water in a river

• land that water flows across or under on its way to a river

• land around smaller streams, lakes, or ponds

• the channel that a river flows in

Tags

NGSS.MS-ESS2-4

What do wetlands regulate?

• water flow

• erosion

• biodiversity

• water temperature

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is an example of point source pollution?

• rainwater washing pollutants into a river

• fertilizer and pesticides from yards

• factory smokestack

• soil erosion

What nutrient do algae blooms deplete needed by fish?

• nitrogen

• oxygen

• carbon dioxide

• phosphorous

Which of the following are things that humans can do to make a difference in our water sources? (choose all that apply)

• volunteer with Stream Watch

• trash pick up and cleaning

• contact the local soil and water conservation to volunteer

• educate yourself on the importance of protecting our rivers and streams