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Unit 5 Ecosystems Review

Total questions: 51

Worksheet time: 1hrs 11mins

Name
Class
Date
1.
An ecosystem is made up of _______ and ________ things.
a)
Living and nonliving
b)
Alive and dead
c)
Plants and animals
d)
Land and water
2.
What does the word organism mean?
a)
Living thing
b)
Nonliving thing
c)
Organs in your body
d)
Organ player
3.
What 4 things does an organism need to survive?
a)
Food, water, shelter, space
b)
Food, friends, shelter, space
c)
Water, shelter, prey, predators
d)
Shelter, food, water, humans
4.

Temperature, light, air, water, and soil are all _____ parts of the environment

a)

alive

b)

biotic

c)

abiotic

d)

living

5.

What is an example of a biotic factor?

a)

skunk

b)

rocks

c)

soil

d)

water

6.

An animal that eats only plants.

a)

scavenger

b)

omnivore

c)

herbivore

d)

carnivore

7.

An animal that eats both plants and animals.

a)

carnivore

b)

omnivore

c)

herbivore

d)

scavenger

8.

An animal that eats only meat.

a)

herbivore

b)

omnivore

c)

carnivore

d)

scavenger

9.

Organisms that breakdown all the dead plants and animals and their waste and are converted into nutrients for plants.

a)

carnivores

b)

consumers

c)

producers

d)

decomposers

10.

All the green plants that provide the energy for consumers.

a)

consumers

b)

producers

c)

decomposers

d)

herbivores

11.

A diagram that shows the transfer of energy from one organism to another (who is eaten by what).

a)

ecosystem

b)

environment

c)

food chain

d)

food web

12.

A diagram that shows the transfer of energy in an ecosystem by using several food chains.

a)

ecosystem

b)

food web

c)

environment

d)

food chain

13.

Without decomposers, what would build up on the ground and not return to the soil?

a)

large rocks

b)

rain water

c)

bacteria and other microorganisms

d)

dead plant and animal matter

14.

In any community, which group includes the largest number of animals?

a)

herbivores

b)

prey

c)

predators

d)

consumers

15.

All the living and nonliving things in an area make up a/an

a)

community.

b)

ecosystem.

c)

population.

d)

environment.

16.

An organism that makes its own food is a/an

a)

producer.

b)

consumer.

c)

predator.

d)

prey.

17.

An _____ is everything that surrounds and affects a living thing.

a)

ecosystem

b)

environment

c)

population

d)

community

18.

All the living things in an ecosystem make up a ________.

a)

ecosystem

b)

environment

c)

population

d)

community

19.

Two or more overlapping food chains form a/an

a)

food chain

b)

food web

c)

community

d)

population

20.

To avoid being eaten, a rabbit will run away from

a)

carnivores.

b)

scavengers.

c)

herbivores.

d)

producers.

21.

Without the Sun, which of Earth's organisms could no longer survive?

a)

producers only

b)

producers and consumers

c)

scavengers only

d)

nearly all organisms

22.

What is the best choice for studying decomposers at work?

a)

a rotting log on the forest floor

b)

a live, healthy tree

c)

a robin that builds a nest in a tree

d)

cut wood at a lumber yard

23.

Which of the following would be at the end of a food chain?

a)

grass

b)

fungi

c)

sheep

d)

coyote

24.

In a diagram of a food web, the arrows show the flow of

a)

soil

b)

sunlight

c)

oxygen

d)

energy

25.

Describes a group of living things that are no longer living.

a)

fossil

b)

extinct

c)

endangered

d)

dinosaur

26.

The hardened remains of a living thing that died long ago.

a)

fossil

b)

extinct

c)

endangered

d)

minerals

27.

Which type of rock are most fossils found?

a)

sedimentary rock

b)

metamorphic rock

c)

igneous rock

d)

fossils

28.

An animal has sharp, pointy teeth, what can we infer about this animal?

a)

The animal lived in the water

b)

The animal lived near the beach.

c)

The animal is a carnivore.

d)

The animal only ate plants.

29.

If a scientist found a fish fossil in the desert, what can they infer?

a)

An animal ate the fish.

b)

The water covered the area long ago.

c)

Today's fish looks the same

d)

The fish is endangered.

30.

How are an elephant and a mammoth alike?

a)

They are both endangered.

b)

They are both extinct.

c)

They both have tusks.

d)

They both live in a warm climate.

31.

What statement is true about fossils?

a)

All living organisms leave behind fossils.

b)

Fossils show that camels never change.

c)

Some living things have not really changed in millions of years.

d)

Plant fossils have never changed.

32.

What needs to happen FIRST for a fossil to form?

a)

A plant or animal must be covered by sediment.

b)

A plant or animal must die and decompose.

c)

Sediments fill a a mold to form a cast.

d)

An earthquake shifts the land up.

33.

Turtles look much like they did millions of years ago. What can we infer about turtle fossils?

a)

They did not change over time.

b)

The turtle survived the ice age.

c)

Turtles went extinct.

d)

Turtles were never endangered.

34.

What can we infer about animals with dull teeth?

a)

They ate other animals.

b)

They ate only plants.

c)

They ate nothing.

d)

They only ate fish.

35.
Another word for a living thing is a:
a)
animal
b)
organism
c)
plant
d)
community
36.
If the population of prey increases, the population of predators will ________because of the availability of food.
a)
decrease
b)
stay the same
c)
increase
37.
How does a bird "change its environment" to meet its NEEDS?
a)
builds a nest
b)
flies around
c)
catches bugs
d)
looks for something to eat
38.

What non-living factor is the most important for an ecosystem to work?

a)

Rock

b)

Sun

c)

Plants

d)

Animals

39.
A meadow has too many rabbits. What would help balance this ecosystem?
a)
more rain that grass needs
b)
more foxes that eat rabbits
c)
fewer foxes that eat rabbits
d)
more grass for the rabbits to eat
40.
Which term best describes two predators living in the same habitat who feed on the same prey?
a)
coexistence
b)
competition
c)
mutualism
41.
The Texas Kangaroo Rat, native to north-central Texas, makes its home in mesquite bushes.  If the mesquite bushes are cleared for human homes , which of the following is the most probable result?
a)
The rat population will rise (increase).
b)
The rat population will decline (decrease).
c)
The rat population will stay the same.
d)
The rat population will double.
42.
Which example shows a relationship between a living thing and a non-living thing?
a)
An insect is food for salmon.
b)
Water carries a rock downstream.
c)
A tree gets nutrients from the soil.
d)
A flower makes food for a butterfly.
43.
Which of these is an example of one living thing depending on another living thing?
a)
Cat walking on the sand
b)
Bird building a nest in a tree
c)
Dog warming in the sunlight
d)
Squirrel drinking water
44.

Living and nonliving things interacting in an environment is called:

a)

Organism

b)

Producer

c)

Consumer

d)

Ecosystem

45.

Plants make their own food

a)

True

b)

False

46.

Some organisms use dead things as food matter

a)

True

b)

False

47.

All the energy that organisms get from food matter originally comes from sunlight

a)

True

b)

False

48.

Click on ALL the resources living things need to survive.

a)

Water

b)

Food

c)

Space

d)

Humans

49.

Which diagram can show us the AMOUNT OF ENERGY that flows from producers to consumers?

a)

Food chain

b)

Web chain

c)

Food pyramid

50.

Algae makes its own food

a)

True

b)

False

51.

Select the RIGHT food chain in a shortgrass prairie

a)

grasshopper →\rightarrow  bird →\rightarrow  mouse →\rightarrow  buffalo

b)

hawk →\rightarrow  snake →\rightarrow  mouse →\rightarrow  grasshopper

c)

grasshopper →\rightarrow  mouse →\rightarrow  snake →\rightarrow  hawk

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