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Ecology Gr 8

Total questions: 62

Worksheet time: 48mins

Name
Class
Date
1.

A feeding relationship between 2 organisms where one benefits and the other isn't affected...

a)

Parasitism

b)

Commensalism

c)

Communism

d)

Mutualism

2.
Green plants are
a)
producers
b)
consumers
c)
herbivores
d)
omnivores
3.

What type of relationship is this?

a)

parasitism

b)

mutualism

c)

commensalism

d)

competition

4.

symbiotic relationship in which both organisms benefit

a)

competition

b)

mutualism

c)

predation

d)

commensalism

5.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
6.
Organisms that breaks down and absorbs nutrients from dead organisms 
a)
consumer
b)
trophic level
c)
decomposer
d)
species
7.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
8.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
9.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
10.
An illustration that uses arrows to show the MANY possible directions in which matter and energy can pass through the organisms in an ecosystem.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
Succession Map
11.

What are plants that convert energy from the sun called?

a)

decomposer

b)

primary consumer

c)

secondary consumer

d)

producer

12.
Which one is NOT an example of a decomposer?
a)
mushroom
b)
leaves
c)
mold
d)
worm
13.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
14.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
15.
Series of steps in which organisms transfer energy by eating and being eaten
a)
foodweb
b)
consumer
c)
food chain
d)
omnivore
16.
Organisms that relies on other organisms for food; consumer
a)
herbivore
b)
decomposer
c)
heterotroph
d)
species
17.
All the organisms in a particular location, including their nonliving environment
a)
ecosystem
b)
carnivore
c)
niche
d)
population
18.
What does fungi do to dead plants and animals?
a)
Leave them there
b)
Decompose them
c)
Wait for other animals to eat them
d)
Move away
19.
In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
a)
10%
b)
20%
c)
80%
d)
90%
20.
What is it called when water is changed from a liquid to a gas?
a)
EVAPORATION
b)
PRECIPITATION
c)
TRANSPIRATION
21.
Nitrogen makes up _____ percent of the atmosphere.
a)
66%
b)
78%
c)
90%
22.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
23.

A population is...

a)

A group of one species in one area

b)

Multiple species that live in one area

c)

All of the living and nonliving things in an area

d)

None of these

24.

All the green plants that provide the energy for consumers.

a)

consumers

b)

producers

c)

decomposers

d)

herbivores

25.

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

26.

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

27.
The place where an organism lives is its __________.
a)
habitat
b)
ecosystem
c)
organism
d)
population
28.
All of the living AND non-living things in an area that interact with each other are called a/an __________.
a)
community
b)
habitat
c)
population
d)
ecosystem
29.
A group of different species that live together and interact in an environment are called a/an __________.
a)
community
b)
habitat
c)
population
d)
ecosystem
30.
ALL energy flow for an ecosystem begins with ...
a)
plants
b)
the moon
c)
the sun
d)
algae
31.

When plants give off drops of water it is called

a)

Transpiration

b)

Evaporation

c)

Condensation

32.

When water vapor is cooled and forms droplets...

a)

condensation

b)

evaporation

c)

transpiration

33.

The process of water passing from earth, to the atmosphere, and back to earth, continuously.

a)

The Water Cycle

b)

Rain

c)

Condensation

d)

Precipitation

34.

Number 5 in this picture is showing

a)

Precipitation

b)

Condensation

c)

Collection

d)

Evaporation

35.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
36.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
37.
How does the carbon in grass become part of a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the lion's food chain. 
d)
The lion breathes in carbon given out by the plant
38.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
39.
What is deforestation?
a)
Clearing Earth's forests on a massive scale
b)
Eating too much vegetables
c)
Going to a forest and pulling weeds
d)
Clearing the five trees in my backyard
40.
What are the effects of deforestation ?
a)
loss of habitat
b)
increased green house gasses 
c)
soil erosion and flooding
d)
all of the above
41.

Deforestation does not cause animals to lose their habitats.

a)

True

b)

False

42.

When we create something new out of old materials we_______________

a)

Cycle

b)

Recycle

43.

1 living thing is called an ______________--

a)

population

b)

ecosystem

c)

organism

44.

many living and non-living things living together is called an _______________

a)

ecosystem

b)

organism

c)

community

d)

population

45.

many turtles living together is called a ______________

a)

ecosystem

b)

population

c)

coomunity

d)

organism

46.

all living things together in one area is called a ____________

a)

community

b)

population

c)

ecosystem

47.

plants are called _________ because they produce food for us.

a)

consumers

b)

producers

c)

prey

48.

humans and animals are _________ because we need to eat food for energy.

a)

producers

b)

prey

c)

consumers

d)

population

49.

an animal that hunts other animals is called a ____________

a)

prey

b)

predator

c)

producer

d)

herbivore

50.

an animal that is hunted and eaten by other animals is called ________

a)

prey

b)

predator

c)

producer

51.

an animal or person that eats only meat.

a)

herbivore

b)

omnivore

c)

carnivore

d)

producer

52.

an animal or person that eats only plants.

a)

herbivore

b)

omnivore

c)

carnivore

d)

producer

53.

an animal or person that eats both meat and plants.

a)

herbivore

b)

omnivore

c)

carnivore

d)

producer

54.

What is the correct order for this food chain?

a)

Owl, Mouse, Grasshopper, Grass

b)

Grass, Mouse, Owl, Grasshopper

c)

Grass, Owl, Grasshopper, Mouse

d)

Grass, Grasshopper, Mouse, Owl

55.

Which of these organisms is the secondary consumer?

a)

Owl

b)

Mouse

c)

Grass

d)

Grasshopper

56.

Which of these organisms is the producer?

a)

Owl

b)

Mouse

c)

Grasshopper

d)

Grass

57.

What do omnivores eat?

a)

Animals

b)

Plants and Animals

c)

Plants

d)

Dead Animals

58.

Place the levels of environment in the correct order.

a)

biome, biosphere, population, organism, ecosystem,community

b)

organism, ecosystem, biosphere, population, community, biome

c)

organism, population, community, ecosystem, biome, biosphere

d)

population, community, organism, biome, ecosystem, biosphere

59.

What is the hawk in the food web?

a)

Producer

b)

Primary consumer

c)

Secondary consumer

d)

Tertiary consumer

60.

How much energy is transferred between trophic levels?

a)

25%

b)

20%

c)

10%

d)

90%

61.

Which of these is an autotroph?

a)

Consumer

b)

Producer

c)

Decomposer

62.

All of the biotic and abiotic factors.

a)

community

b)

ecosystem

c)

population

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