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Worksheets

Ecology

Total questions: 25

Worksheet time: 23mins

Name
Class
Date
1.

A biotic thing in an environment is one that

a)

is or was alive

b)

is non-living (never has been alive)

2.

Herbivores, omnivores, and carnivores are all

a)

consumers

b)

decomposers

c)

producers

d)

scavengers

3.

An area of land where plants and animals interact with all of the things they need to live like air and water is

a)

a biome

b)

the biosphere

c)

a community

d)

an ecosystem

4.

Bacteria in an environment are special because they return dead material to the soil. This special role is given the name

a)

consumer

b)

decomposer

c)

producer

d)

scavenger

5.

When a bird finds, catches, and eats a worm, the predator is the

a)

bird

b)

worm

6.

A producer in the food web shown is the

a)

sun

b)

grass

c)

rabbit

d)

hawk

e)

fungus

7.

A decomposer in the food web shown is the

a)

sun

b)

grass

c)

rabbit

d)

hawk

e)

fungus

8.

A diagram of the living things in an ecosystem that shows all of the paths energy can take as it travels from producers to consumers is a

a)

food chain

b)

food web

9.

A species that has been moved to a new ecosystem and is causing damage to that ecosystem is called a(n)

a)

consuming species

b)

introduced species

c)

invasive species

d)

migrating species

10.

Which of these things could limit the size of a population? (check all that apply)

a)

available food

b)

season of the year

c)

available water

d)

number of predators in the area

e)

diseases in the population

11.

A biome in the world that has forests that lose their leaves seasonally is

a)

coniferous biome

b)

deciduous biome

c)

grassland biome

d)

tropical rain forest biome

12.

When graphing population size you can tell when a population has a limiting factor because

a)

it has changed from a J-shaped graph to an S-shaped graph

b)

it has changed from an S-shaped graph to a J-shaped graph

c)

all members of the population die.

13.

A producer is an organism that

a)

gets energy from eating other things

b)

gets energy from breaking down dead things in the environment

c)

uses sunlight to make its own food

14.

An organism that eats mostly plants is called a(n)

a)

herbivore

b)

consumer

c)

producer

d)

scavenger

15.

An organism that can change the way it eats, adjusting to almost any condition is called a(n)

a)

carnivore

b)

herbivore

c)

omnivore

d)

scavenger

16.

In the diagram, the shrew provides energy for the

a)

cricket

b)

frog

c)

grasshopper

d)

snake

17.

The organism in competition with the weasel for food is the

a)

grass

b)

fox

c)

snake

d)

rabbit

18.

What would happen to the rabbit population if the fox population moved out of the area?

a)

The rabbit population would likely decrease

b)

The rabbit population would likely increase

c)

The rabbit population would likely stay the same

19.

Symbiotic relationships where both species benefit are called

a)

commensal

b)

mutual

c)

parasitic

20.

Deer ticks harm deer in a symbiotic relationship. This means the deer tick is a

a)

commensalist

b)

mutualist

c)

parasite

21.

Sea anemones protect clownfish from predators, while clownfish eat things that harm the sea anemones. This symbiotic relationship is an example of

a)

commensalism

b)

mutualism

c)

parasitism

22.

In photosynthesis plants use sunlight energy to build carbon dioxide from the atmosphere into

a)

water molecules

b)

oxygen molecules

c)

sugar molecules

d)

nitrogen molecules

23.

Organisms that go through cell respiration include (check all that apply)

a)

plants

b)

animals

c)

predators

d)

bacteria

24.

When organisms break down sugar and go through cell respiration they give off waste of

a)

only carbon dioxide gas

b)

only water vapor

c)

both carbon dioxide gas and water vapor

d)

only nitrogen gas

25.

In the water cycle, when plants lose water through their leaves it is called

a)

transpiration

b)

evaporation

c)

uptake

d)

condensation