What is an ecosystem?

A system of living and non-living things working together

The arrows in a food chain or web represent ...

They show the direction the energy is flowing between organisms.

They point to the organism that is being eaten.

It shows how sunlight flows within an ecosystem.

They represent how water is transferred within a habitat.

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

There would be a decrease in the grass/flowers population.

There would be a decrease in the small bird population.

There would be a decrease in the mice population.

There would be an increase in the grass/flowers population.

Which of the following best describes the small bird in the food web above?

secondary and tertiary consumer

Which statement best describes what will happen if the population of herbivores in the community decreases?

the population of meadow plants will increase

the population of foxes will increase

the population of hawks will increase

the population of rabbits will increase

What does a pyramid of numbers compare?

the number of individual organisms at each trophic level

the number of individuals in each population

the number of predators and prey in an ecosystem

the number of different populations at each trophic level

Select the correct text in the passage. Which sentences describe decomposers in a food chain?

They are the final link in the energy flow in a food chain or a food web. They are fungi and animals that feed on dead organic matter.

Bacteria, fungi, worms, and snails recycle the garbage of dead matter and give back nutrients into the ecosystem.

Plants produce food or energy from raw materials.

Plants are also known as autotrophs because they can produce organic compounds from inorganic chemicals.

How many trophic levels can monkeys occupy in a food chain?

two, because they eat plants and insects

one, because they eat only plants

one, because they feed only on flesh

one, because they are producers of food

Which statement is correct about the pyramid of numbers?

Higher the trophic level, lower the number of species and larger their size.

Higher the trophic level, higher the number of species and larger their size.

Higher the trophic level, lower the number of species and smaller their size.

Higher the trophic level, higher the number of species and smaller their size.

Select the correct text in the passage. Which sentences describe decomposers in a food chain?

They are the final link in the energy flow in a food chain or a food web. They are fungi and animals that feed on dead organic matter.

Bacteria, fungi, worms, and snails recycle the garbage of dead matter and give back nutrients into the ecosystem.

Plants produce food or energy from raw materials.

Plants are also known as autotrophs because they can produce organic compounds from inorganic chemicals.

Ecological Pyramids/Trophic Levels

Authored by Christopher Marts

Biology, Science

9th Grade

NGSS covered

Used 9+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Decomposers can be found where on the food chain?

1st level

2nd level

3rd level

Anywhere on the food chain.

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The most Biomass is found?

Top Predator

Carnivore

Herbivore

Producers

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Autotrophs are also know as __________ because they make their own food.

Consumer

Herbivore

Producer

Omnivore

Tags

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The lion in this picture is a ________.

Autotroph/Carnivore

Autotroph/Herbivore

Heterotroph/Carnivore

Heterotroph/Herbivore

Tags

NGSS.MS-LS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The total mass of all the organisms in a given area is called?

Biomass

Mass

Organisms

Life

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All the organisms on earth get their energy directly or indirectly from?

Oxygen

Water

Nitrogen

The Sun

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these is not a Heterotroph/Consumer?

Plant

Decomposer

Ominivore

Herbivore

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Ecological Pyramids/Trophic Levels

Decomposers can be found where on the food chain?

The most Biomass is found?

Autotrophs are also know as __________ because they make their own food.

The lion in this picture is a ________.

The total mass of all the organisms in a given area is called?

All the organisms on earth get their energy directly or indirectly from?

Which of these is not a Heterotroph/Consumer?

Another name for a 1st level consumer.

The secondary consumer here is?

How many Tertiary consumers are there

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