Food chains and food webs revision

Amount of energy in a food pyramid transferred from one level to the next

• 0%

• 10%

• 78%

• 100%

Tags

NGSS.MS-LS2-3

If a disease strikes the snakes the rabbits will

• increase

• decrease

• not be affected

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

If a disease strikes the snakes the hawks will

• increase

• decrease

• not be affected

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

If a disease strikes the snakes the grass will

• increase

• decrease

• not be affected

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

1st level consumers are:

• Producers
• Herbivores
• Decomposers
• Carnivores

Which group is not represented in the food web?

• producers

• primary consumers

• secondary consumers

• decomposers

Tags

NGSS.MS-LS2-3

What do the arrows in the food chain indicate about the flow of energy in an ecosystem?

• Energy is continuously recycled by the organisms in an ecosystem.

• Energy flows in one direction in an ecosystem, from producers to consumers.

• More of the available energy in an ecosystem is given to large animals than to small animals.

• Organisms at the end of the food chain receive more energy than those at the beginning.

Tags

NGSS.MS-LS2-3

In this energy pyramid, which organism would most likely be in level 2?

• bird

• fox

• caterpillar

• tree

Tags

NGSS.MS-LS2-3

Which one of the following is true of grass in an ecosystem?

• It converts oxygen to glucose.

• It produces carbon dioxide from oxygen and water.

• It produces glucose from carbon dioxide and water.

• It converts water to energy.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How would the removal of earthworms from the food chain affect the other organisms?

• The number of bass will increase.

• The number of crayfish will decrease.

• The crayfish will get their energy directly from the sun.

• The number of bass and ospreys (bird) will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4