Unit 09: Ecology Quizizz

What trophic level has the most amount of energy available?

• Producers

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

Answer explanation

Producers are always at the base of an energy pyramid because they get energy directly from the original source, the sun, during photosynthesis

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What trophic level has the least amount of energy available?

• Producers

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

Answer explanation

Tertiary consumers get minimal energy since only 10% is passed on from each level, beginning with producers.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If there are 50J of energy available at the secondary consumer level, what is the energy available at the primary consumer level?

• 5,000J

• 500J

• 50J

• 50,000J

Answer explanation

The secondary consumer has 10% of energy that was available at the primary level. 50 J is 10% of 500 J. So the primary consumer had 500 J of energy

Tags

NGSS.MS-LS2-3

If there are 50J of energy available at the secondary consumer level, what is the energy available at the producer level?

• 5,000J

• 500J

• 50J

• 50,000J

Answer explanation

If the secondary consumer ha 50J of energy, the primary would have 500 J and the producer would have the most, at 5,000J of energy

Tags

NGSS.MS-LS2-3

If there are 50J of energy available at the secondary consumer level, what is the energy available at the tertiary consumer level?

• 5,000J

• 500J

• 50J

• 5 J

Answer explanation

If the secondary consumer has 50J of energy, the tertiary will only have 10% of that number. You move your decimal once to the left and you end up with only 5 J of energy.

Tags

NGSS.MS-LS2-3

What organism would be at the base of the energy pyramid?

• Grass

• Eagle

• Deer

• Frog

Answer explanation

The base, or bottom, of the pyramid will always be the producers, or organisms that make their own food. You can tell it is a producer if there are no arrows pointing to the organism.

Tags

NGSS.MS-LS2-3

What organism would be at the top of the energy pyramid?

• Grass

• Eagle

• Deer

• Frog

Answer explanation

The top of the pyramid will always be the organisms that either eat the highest number of other organisms or te ones that do no get eaten. In this case, the eagle eats 3 other organisms and does not get eaten by any other organism.

Tags

NGSS.MS-LS2-3

All of the following are herbivores in this food web EXCEPT -

• Grasshopper

• Deer

• Mouse

• Frog

Answer explanation

Herbivores = eats producers only. Frogs are secondary consumers based on this food web.

Tags

NGSS.MS-LS2-2

Which populations would most likely decrease if the population of the frogs increased?

• Grasshopper

• Deer

• Mouse

• Eagle

Answer explanation

Frogs feed on grasshoppers so if the frog population goes up, the grasshoppers will have more predators feeding on them, causing them to go down.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which populations would most likely increase if the population of the frogs increased?

• Grasshopper

• Deer

• Mouse

• Eagle

Answer explanation

Frogs are the prey of eagles. Therefore, if there are more frogs available, more eagles can be supported by the increase in food population.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4