If only 10% of an organism's energy is available for the next trophic level, what happens with the other 90% of the energy?

It is used for life processes or lost as body heat.

It is destroyed after it is used up.

It remains for the next trophic level IF the predator consumes ALL of the organism.

It is lost completely as body heat.

The diagram is intended to show relationships in an ecosystem. What do the arrows represent?

The direction of the energy flow

The direction of population migration

Progressively smaller organisms

The diagram represents a model of a food pyramid. Which statement best describes what happens in this food pyramid?

Energy is lost to the environment at each level, so less mass can be supported at each higher level.

More organisms die at higher levels than at lower levels, resulting in less mass at higher levels.

When organisms die at higher levels, their remains sink to lower levels, increasing the mass of lower levels.

Organisms decay at each level, and thus less mass can be supported at higher levels

The diagram to the right represents different feeding levels in an energy pyramid. The most likely explanation for showing fewer organisms at each feeding level going up the pyramid is that

some energy is lost to the environment as heat

the larger the organism, the less energy it requires

some energy is recycled within each level and remains there

decomposers convert most of the energy into inorganic compounds

Species A, B, C, and D are all different heterotrophs involved in the same food chain in an ecosystem. The chart below shows the population of each species at the same time on a summer day. Which statement best describes one of these species of heterotrophs ?

Species D is most likely the top predator in the food chain.

Species A is the most numerous because it can make its own food.

Species B probably feeds on species D.

Species C and B interbred to produce species A.

The diagram below represents two energy pyramids. Each pyramid represents the productivity of one acre of land. Based on the concept of energy transfer, why can one acre of land produce more vegetables for human consumption than beef for human consumption.

Energy is lost as trophic level increases and there is less biomass at each level. Consumers that feed directly on plants have more energy and biomass available to them than consumers feeding on other consumers.

Energy is gained as trophic level increases and there is more biomass at each level. Consumers that feed directly on plants have less energy and biomass available to them than consumers feeding on other consumers.

CW/HW 9.7 Energy Pyramids and Biomass

Authored by Mia Angulo

Biology

8th - 10th Grade

NGSS covered

Used 12+ times

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22 questions

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MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What makes an energy pyramid different than a food web or chain?

It shows energy flowing from the top of the chain and downward.

The tropic levels are the opposite

It shows the amount of energy in each trophic level

It shows specific predator/prey relationships

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A pyramid shape is used to show the amount of available energy at each trophic level because...

energy decreases as you go up the food chain, just like the pyramid shape gets smaller as you go up.

energy increases up the food chain just like the pyramid shape gets smaller as you go up.

energy amounts are the same at each trophic level

Tags

NGSS.HS-LS2-4

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the ultimate ORIGINAL source of energy for living things?

Sugar

Sun

Moon

Carbon Dioxide

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Where do producers get their energy?

soil

decomposers

sun

garbage

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In an energy pyramid, energy_______ as you move up the pyramid.

Increases

Decreases

Stays the same

Changes up and down

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In the energy pyramid here, which organisms have the most energy available?

Producers

Carnivores

Herbivores

Top Predator

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In the energy pyramid, which organism has the least amount of energy available?

Producers

Herbivores

Carnivores

Top Predator

Tags

NGSS.MS-LS2-3

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CW/HW 9.7 Energy Pyramids and Biomass

What makes an energy pyramid different than a food web or chain?

A pyramid shape is used to show the amount of available energy at each trophic level because...

What is the ultimate ORIGINAL source of energy for living things?

Where do producers get their energy?

In an energy pyramid, energy_______ as you move up the pyramid.

In the energy pyramid here, which organisms have the most energy available?

In the energy pyramid, which organism has the least amount of energy available?

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

If only 10% of an organism's energy is available for the next trophic level, what happens with the other 90% of the energy?

In this Food Web Pyramid, which type of consumer gets only 10% of the energy stored in plants?

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