Energy Pyramid Review

Why can the predator to prey ratio NEVER be 1:1?

• Only 10% of the energy available transfers to each trophic level.

• All of the answers are correct.

• There wouldn't be enough energy to support the consumer.

• Each level of the food chain contains fewer individuals than the level before it.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

At which trophic levels are you consuming when you eat a burger and fries?

• Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

• Quaternary Consumer

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

True or False: Only 10% of toxins an organism absorbs is transferred to the animal that eats it.

• True

• False

Answer explanation

As producers store energy, they absorb molecules of toxins from the water. Next, herbivores eat large numbers of producers. Toxins like mercury dissolve in fat, not water. They are stored in the fatty tissues of herbivores and are not passed out of their bodies.

When carnivores eat many herbivores, they accumulate even higher levels of toxins in their tissues. Secondary carnivores, who prey on other carnivores, can accumulate dangerous levels of toxic pollutants.

What 3 things does a population need to grow?

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following could happen if the mouse population was decimated in our energy pyramid?

• Nothing would happen. The energy pyramid doesn't rely on the amount of mice.

• The majority of the grasshoppers would die.

• The snake population would grow unchecked.

• None of these answers are correct.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which trophic level has the most amount of organisms?

• Producers

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

• Quaternary Consumers

Tags

NGSS.MS-LS2-3

Which trophic level has the least amount of organisms?

• Producers

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

• Quaternary Consumers

Tags

NGSS.MS-LS2-3

Which trophic level would be the most impacted by toxins in the environment? Give an example.

Tags

NGSS.HS-LS4-5