8.L.3.1 Ecosystems

Which difference in the jetties would MOST likely make Jetty B better for native fishes?

• Jetty B reduces beach erosion

• Jetty B allows more light into the water.

• Jetty B decreases the temperature of the water.

• Jetty B provides more places for organisms to live.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which is an abiotic factor the MOST limits the number of frogs living in a pond?

• the color of the water

• the number of predators

• the temperature of the water

• the populations of the producers

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Which MOST likely occurs in the area where the tree falls that helps the plants and shrubs grow taller?

• A decrease in competition for sunlight.

• A decrease in the amount of rainfall.

• An increase in herbivore population.

• An increase in soil formation.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If acid rain causes a decrease in the number of mayfly nymphs, which population will decrease in number?

• trout

• frogs

• birds

• snails

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The danger posed to fish in an aquarium by an overpopulation of bacteria caused by an algal bloom is MOST likely a

• a decrease in water temperature

• a reduction in oxygen levels

• decrease in food supply

• removal of minerals

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4