What could be a possible explanation for what is happening to the moose population from 1986 - 1987?

There is a disease in the moose population.

There is a lack of mates in the moose population.

In the relationship on the graph, who is the predator and who is the prey?

Predator = moose / Prey = wolves

Predator = moose / Prey = moose

Based on the information in the graph, what is a possible explanation for what is happening to the wolf population from 1980 - 1982?

There was a decrease in the wolves' food supply.

Wolves were leaving the ecosystem.

Competition in an ecosystem occurs when

more than one individual or population in an ecosystem relies (needs) the same limited resource.

there is more than enough of a resources for every living organism.

Any thing or organism that regulates the size of a population of another organism is known as __________.

materialization of precipitation

The toad increases when the insects increase because...

the toad rely on the insects for food

the insects rely on the toad for food

the toad don't affect the insects

What role do decomposers play in an ecosystem?

They break down dead material and recycle nutrients back into the ecosystem

They produce their own food through photosynthesis

They consume living plants and animals

They regulate the population of other species

Explain how energy flows through an ecosystem, starting from the sun and ending with decomposers.

Energy is captured by producers, transferred to consumers, and finally to decomposers.

Energy is captured by decomposers, transferred to consumers, and finally to producers.

Energy is captured by consumers, transferred to producers, and finally to decomposers.

Energy is captured by decomposers, transferred to producers, and finally to consumers.

How is commensalism different from mutualism?

In commensalism, one species benefits while the other is unharmed; in mutualism, both species benefit

In commensalism, one species is harmed while the other benefits; in mutualism, both species benefit

In commensalism, neither species is harmed; in mutualism, one species is harmed

In commensalism, both species benefit; in mutualism, one species is harmed

Competition and Interactions in Ecosystems

Authored by Alisa Leyden

Science

5th Grade

NGSS covered

Used 17+ times

Competition and Interactions in Ecosystems

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which organism do the owl and the weasel compete for in the food web?

Hawk

Spider

Grasshopper

Shrew

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Identify which image below is showing a population:

Tags

NGSS.MS-LS2-1

MULTIPLE CHOICE QUESTION

45 sec • 4 pts

What term describes organisms striving for the same limited resources?

Competition

Predation

Mutualism

Commensalism

Tags

NGSS.MS-LS2-1

MULTIPLE CHOICE QUESTION

45 sec • 2 pts

The primary consumer in this food chain is

predator

zooplankton

plankton

small fish

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

45 sec • 2 pts

Where does all of the energy in any food chain come from?

producers

consumers

herbivores

the sun

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

MULTIPLE SELECT QUESTION

45 sec • 2 pts

An organism that only eats plants, and does not hunt is

scavenger

omnivore

herbivore

carnivore

MULTIPLE CHOICE QUESTION

45 sec • 2 pts

A type of consumer that only eats meat is a

herbivore

omnivore

carnivore

decomposer

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Competition and Interactions in Ecosystems

Which organism do the owl and the weasel compete for in the food web?

Identify which image below is showing a population:

What term describes organisms striving for the same limited resources?

The primary consumer in this food chain is

Where does all of the energy in any food chain come from?

An organism that only eats plants, and does not hunt is

A type of consumer that only eats meat is a

These are organisms that feeds on plants or other animals for energy.

This can make its own food, like plants.

A consumer that eats only plants.

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