many possible interactions and feeding relationships beween the organsims in the ecosystem

a nice picture of what lives in the ecosystem

This trophic pyramid most shows

how energy flows through this ecosystem

how matter cycles in this ecosystem

how energy cycles in this ecosystem

all the living things that live in this ecosystem

Which level would have the most biomass?

Secondary consumers- carnivores

Quaternary consumers- Apex Predators

Which level would have the least biomass?

Quaternary consumers- Apex Predators

Secondary consumers- carnivores

What is the difference between a Trophic Pyramid and Food Web?

A Trophic Pyramid shows the energy & mass available, but the food web shows directly who eats who.

A food web shows the mass & energy available, but the Trophic Pyramid shows directly who eats who.

A food web is so pretty to look at.

A trophic pyramid is so beautiful.

What does a Primary Consumer eat?

Producers and other primary consumers

Secondary and tertiary consumers

What does a food web represent?

All connections of energy flow throughout all organisms in a habitat.

The specific ways that mutualism is carried out.

A single pathway or energy flow between organisms.

What may happen if the snowshoe hare was removed from the food web pictured?

The shrew population would decrease due to being only hawk food source.

The insects in the habitat would increase.

The willow tree population would decrease.

Foxes would dies due to no food source.

Which of these is true about this food web?

The Mouse is most likely to die, several ways.

The Owl gets its energy from the producer.

The Lion gets its energy only from a wild cat.

The Kite gets its energy from the goat.

What is an ecological community?

A group of the same type of organisms.

A group of the same species of organisms.

Rabbits are members of a community in a meadow. The rabbits eat grasses, clover, as well as roots, seeds, and tree bark. What defines the organisms that share the same trophic level as the rabbits?

meadow animals that eat plants and plant products

snakes, hawks, and other animals that eat rabbits

community members that interact with rabbits

meadow animals that are about the same size as a rabbit

Juanita is studying the food web of the open ocean. Which step would be most useful for her to follow to identify the primary producers of the food web?

Look for tiny phytoplankton that float on the ocean surface.

Look for floating plants, such as water lilies.

Look for small animal plankton near the ocean surface

Look for plants or animals that live along the ocean floor

The diagram shows a model of feeding relationships in an ecosystem? What is shown by the arrows that lead to and from the raccoon?

The raccoon is part of one food web and several overlapping food chains.

The raccoon is part of several food chains, but not a food web.

The raccoon is part of several food chains and several food webs.

The raccoon is part of one food web, but no food chains.

Karen is classifying a group of organisms that are either primary producers or consumers. What is the direct source of energy for all of the consumers?

either producers or other consumers

nonliving sources, such as sunlight

Which of the following BEST describes the flow of energy through a food chain?

Energy flows from primary producers to consumers, in one direction only.

Energy flows between primary producers and consumers, in either direction.

Energy flows from consumers to primary producers, in one direction only.

Energy flows between primary producers and consumers, in an endless cycle.

The diagram shows a model of an ecosystem. What does the model represent?

the relative amount of energy available at each trophic level

the total biomass in each trophic level

the total amount of energy in the ecosystem

the conservation of energy as energy transfers between organisms

A pyramid of biomass is one way to model an ecosystem. How does the amount of biomass generally change from the bottom of the pyramid to the top?

The amount of biomass decreases.

The amount of biomass increases.

The amount of biomass varies only slightly, and may increase or decrease.

The amount of biomass varies widely, and both increases and decreases.

Which two biomes have the least precipitation?

tropical rain forest and temperate grasslan

savanna and tropical dry forest

boreal forest and temperate woodland

Energy Flow and Ecosystems

Authored by Shawna Mattson

Science

9th - 12th Grade

NGSS covered

Used 10+ times

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45 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Trophic Levels show the

what grade each organism has achieved in the ecosystem

position that an organism occupies in a food chain - what it eats, and what eats it

part of the triangle the organism likes the most

elevation the organism likes to live in

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The trophic pyramid is a triangular shape because

90% of energy is lost to heat, movement, and survival, and only 10% of energy goes to the next level

People see the top of the pyramid so it is important to know the keystone species.

10% of energy is lost to heat, movement, and survival, and only 90% of energy goes to the next level

the top of the pyramid is the pinnacle organism of an ecosystem

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Biomass is

The mass of nonliving organisms in an area or ecosystem at a given time

All the waste produced by organisms in an area

The mass of living organisms in an area or ecosystem at a given time

The energy in an ecosystem

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Producers obtain their energy by

the process of hunting for prey

the process of eating plants

the process of photosynthesis to make their own food from sunlight

the process of breaking down once living things

Tags

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All living parts of an ecosystem (plants, animals, and decomposers) are depend on one another for

food

energy

cycling matter

food, energy, and the cycling of matter

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The carnivore level in this diagram are also known as

Producers

Primary consumers

Secondary consumers

Tertiary consumers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The herbivore level in this diagram are also known as

Producers

Primary consumers

Secondary consumers

Tertiary consumers

Tags

NGSS.MS-LS2-3

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Energy Flow and Ecosystems

Trophic Levels show the

The trophic pyramid is a triangular shape because

Biomass is

Producers obtain their energy by

All living parts of an ecosystem (plants, animals, and decomposers) are depend on one another for

The carnivore level in this diagram are also known as

The herbivore level in this diagram are also known as

The food web shows

This trophic pyramid most shows

Which level would have the most biomass?

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