Flow of Energy within an Ecosystem

Decomposers

• break down dead organisms

• use energy from the sun

• go through photosynthesis

• are plants

Tags

NGSS.MS-LS2-3

The second level in the pyramid (C) would represent-

• producers

• primary consumers

• secondary consumers

• tertiary consumers

Tags

NGSS.MS-LS2-3

What would happen if a new organism came and ate all the grasshoppers?

• the plants would decrease

• the frog and snake population would increase

• the frog, snake and hawk population would decrease

• the food chain would not change

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

All food chains start with-

• a producer (plant/autotroph)

• a primary consumer

• secondary consumer

• carnivore

Tags

NGSS.MS-LS2-3

An autotroph is an organism that

• makes it own food using sunlight

• eats other organisms

Tags

NGSS.MS-LS1-6

The energy pyramid represents-

• how energy decrease from level to level

• how available organisms decrease from level to level

• both answers are correct

Tags

NGSS.MS-LS2-3

How many hawks can be supported with a rabbit population of 400?

• 4

• 40

• 400

• 4000

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

D in the pyramid represents-

• autotrophs/producers

• primary consumers/herbivores

• secondary consumers/omnivores

• tertiary consumers/carnivores

Tags

NGSS.MS-LS2-3

Which of these shows a possible food chain for an ecosystem?

• shark--> fish --> plankton -->sun

• sun --> plankton --> fish --> shark

• plankton --> sun --> fish --> shark

• plankton --> fish --> shark --> sun

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

If the snake population decreased, which group would increase in number?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

• Decomposers

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4