Amoeba Sis - Webs & Pyramids

What does it mean if an organism is a producer?

• It eats other plants or animals

• It eats dead plants or animals

• It makes its own food

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NGSS.MS-LS2-3

In a food chain, the arrows always point to the organism...

• making the food

• doing the eating

• being eaten

What happens to the energy as it moves up the pyramid?

• Only 10% of the energy moves up to the next level.

  Most energy is lost

• About 90% of the energy moves up to the next level.

  Very little is lost.

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Which level in the pyramid contains the most energy?

• The base or bottom

• The top

• The middle

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What could happen if the snake is taken OUT of this ecosystem? Notice the top predator is called the apex predator.

• The grasshopper population would increase

• The frog population would decrease

• The populations would stay the same

• The frog population would increase

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how is a food web different from a food chain?

• A food web includes all the organisms in an ecosystem.

• Organisms in the food web might have more than one arrow pointing to or away from it.

• A food web has more than one energy path

• ALL Answers are correct

Tags

NGSS.MS-LS2-3

Why is biodiversity useful to an ecosystem?

• It makes an ecosystem more stable because it is better at adapting to change

• It allows one species to take over so it won't go extinct

• It makes the ecosystem larger and more powerful

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Which has more biodiversity?

• Food Web

• Food Chain

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Why are decomposers so important to an ecosystem?

Choose ALL that Apply

• They break down waste and dead stuff that would build up over time

• They return nutrients and molecules back into the environment

• They keep animal and plant populations from too large

Tags

NGSS.MS-LS2-3

The base of an energy pyramid represents which organisms in an ecosystem?

• Herbivores

• Scavengers

• Omnivores

• Producers

Tags

NGSS.MS-LS2-3