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Ecosystems

Total questions: 37

Worksheet time: 28mins

Name
Class
Date
1.
A species that may become endangered is...
a)
invasive
b)
threatened
c)
endangered
d)
extinct
2.
A species that has died and is gone forever is...
a)
invasive
b)
threatened
c)
endangered
d)
extinct
3.
As ocean temperatures _______, algae in corals die, leading to coral bleaching.
a)
rise
b)
fall
c)
stay the same
d)
rise, then fall
4.
A system made up of organisms interacting with one another
a)
biology
b)
abiotic
c)
biotic
d)
ecosystem
5.
Organisms that make up the living part of an ecosystem.
a)
abiotic
b)
biotic factors
c)
ecology
d)
ecosystems
6.
Nonliving things found in an ecosystem.
a)
factories
b)
factor trees
c)
biotic factors
d)
abiotic factors
7.
The study of interactions in an ecosystem.
a)
ecology
b)
philosophy
c)
scientology
d)
biology
8.
A group of the same type of organisms living in the same place at the same time.
a)
threatened species
b)
populations
c)
community
d)
limiting factor
9.

All of the populations that live in one area together

a)

limiting factors

b)

populations

c)

community

d)

speed limit

10.
A species that is in danger of becoming extinct.
a)
Threatened species
b)
out of luck
c)
do do birds
d)
endangered species
11.
A species that needs to be protected but is not in danger of becoming extinct.
a)
endangered species
b)
threatened species
c)
sub species
d)
special species
12.
Deserts, mountains, and rivers are all examples of ________.
a)
vacation spots
b)
tundra
c)
ecosystems
d)
wetlands
13.
Ecosystems are always______.
a)
always changing
b)
always balanced
c)
never changing
d)
never balanced
14.
A species is closer to extinction if it is _________.
a)
counted by scientists
b)
in national geographic
c)
classified as threatened
d)
classified as endangered
15.
Decomposers get their food by __________.
a)
making it themselves
b)
eating live organisms
c)
using dead organisms
d)
eating themselves
16.

Meat-eating organisms are called _______.

a)

carnivore

b)

herbivores

c)

omnivores

17.

An organism that is hunted and eaten is _______.

a)

predator

b)

prey

c)

carnivore

18.

Consumers that eat both plants and animals are _______.

a)

carnivores

b)

herbivores

c)

omnivores

19.

Organisms that feed upon decaying animals are _______.

a)

predators

b)

producers

c)

decomposers

20.

Plant eating organisms are called _______.

a)

carnivores

b)

herbivores

c)

omnivores

21.

An organism that hunts are eats other organisms is a _______.

a)

predator

b)

prey

c)

producer

22.

Organisms that get energy by eating other organisms are _______.

a)

plants

b)

producers

c)

consumers

23.

An organism that can make its own food using the sun's energy is a _______.

a)

producer

b)

consumer

c)

decomposer

24.

The process of using sunlight to make food is called _______.

a)

photosynthesis

b)

symbiosis

c)

consumerism

25.

What is something a carnivore might eat?

a)

a fish

b)

strawberries

c)

both a fish and strawberries

26.

What is something an herbivore might eat?

a)

a fish

b)

strawberries

c)

both a fish and strawberries

27.

What is something an omnivore might eat?

a)

a fish

b)

strawberries

c)

both a fish and strawberries

28.

How do plants use the sun's energy?

a)

to warm up

b)

to reflect light

c)

to make their food

d)

they don't use it at all

29.

What is something a decomposer might consume?

a)

old bread

b)

a pencil

c)

a mud puddle

30.

What are all the human causes to harm an ecosystem?

a)
b)
c)
d)

all of the above

31.

What are all the natural causes to harm an ecosystem?

a)
b)
c)

natural disasters such as volcanoes and hurricanes

d)

animal diseases

32.
Any species in which every last member has died. 
a)
Invasive
b)
Pest
c)
Extinct
d)
Weeds
33.
Extinct in 1989
a)
Golden Toad
b)
Minestrone Soup
c)
Yellow Frog
d)
Sun Toad
34.
Extinct in 1662
a)
Smartest Bird Ever
b)
Yellow Beaked Turkey
c)
Turkey Vulture
d)
Dodo Bird
35.
Extinct in the 1930s
a)
Tasmanian Tiger
b)
Tasmanian Devil
c)
Tazmanian Skittles
d)
Striped Wolf
36.
Humans are causing extiction in which ways?
a)
By over hunting animals for food or products.
b)
By destroying the natural habitat of species.
c)
By polluting the environments of the world.
d)
All of the above.
37.

Ecosystems are a _______ balance of living organisms. If even one living thing dies out, there can be a ________ impact on the whole ecosystem!

a)

pretty

b)

delicate

c)

negative

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