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Ecology Review

Total questions: 50

Worksheet time: 27mins

Name
Class
Date
1.

What is the definition of a population?

a)

all individuals of one kind living in one area

b)

one single organism

c)

any living thing

d)

many different organisms living in one area

2.

What is the definition of a community?

a)

any living thing

b)

one single individual

c)

all the individuals of one kind in one area

d)

all of the populations living in one area

3.

Biotic means:

a)

living organisms and the remains of living organisms

b)

non-living

4.

Abiotic means:

a)

living organisms and the remains of living organisms

b)

non-living

5.

Spiders eat flies. When drawing the food web for this relationship, you should draw the arrow:

a)

FROM the spider, TO the fly

b)

FROM the fly, TO the spider

6.

Select the three things plants need to do photosynthesis.

a)

Water

b)

Glucose

c)

Carbon dioxide

d)

Light energy

7.

What energy molecule do plants make as a result of photosynthesis?

a)

Water

b)

Oxygen

c)

Carbon dioxide

d)

Glucose

8.
What is the role of fungi in food webs?
a)
scavenger
b)
bacteria
c)
producer
d)
decomposer
9.
Nearly all energy that fuels life on Earth comes from
a)
water
b)
the soil
c)
the sun
d)
the air
10.
Which of the following refers to all the organisms in a particular area?
a)
ecosystem
b)
community
c)
organelles
d)
population
11.

A large increase in the number of birds in this food web would most likely result in...

a)
a decrease in the number of grasshoppers.
b)
an increase in the number of grasshoppers. 
c)
an increase in the number of producers and grasshoppers. 
d)
a decrease in the number of producers. 
12.

Identify a primary consumer in this food web.

a)
grass
b)
squirrel 
c)
vulture
d)
cougar
13.

What do the arrows in the diagram represent?

a)

flow of energy

b)

life cycle stages

c)

ecological succession

d)

renewable resource deletion

14.

grass --> grasshopper --> sparrow --> hawk

In the food chain above, which organism would be found on level B of the energy pyramid shown?

a)

grass

b)

grasshopper

c)

sparrow

d)

hawk

15.

What is the term for all the living and nonliving things in a particular area?

a)

ecosystem

b)

habitat

c)

community

d)

population

16.

What happens when two organisms try to occupy the same niche?

a)

They complete with one another for limited resources.

b)

They learn to work together to obtain the things they need to live.

c)

One organism will run away for the other.

d)

Nothing will happen.

17.

Which of the following best defines the term "biodiversity"?

a)

all the different ways that organisms reproduce

b)

the similarities between different species

c)

all the types and amount of life in a particular area or the world

d)

a process for creating a new organism

18.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
19.
Organisms that relies on other organisms for food; consumer
a)
herbivore
b)
decomposer
c)
heterotroph
d)
species
20.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source. 
21.
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%
22.
What is it called when water is changed from a liquid to a gas?
a)
EVAPORATION
b)
PRECIPITATION
c)
TRANSPIRATION
23.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
24.

A model that shows the amount of energy available at each feeding level of an ecosystem

a)

ecosystem

b)

nitrogen cycle

c)

energy pyramid

d)

food web

25.

a model of the feeding relationships between many different consumers and producers in an ecosystem

a)

food chain

b)

ecosystem

c)

food web

d)

energy pyramid

26.

an organism that gets its energy by eating or consuming other organisms

a)

consumer

b)

producer

c)

scavenger

d)

decomposer

27.

organisms that break down dead plant and animal matter into simpler compounds

a)

consumers

b)

producers

c)

decomposers

d)

scavengers

28.

the movement of water through Earth, its atmosphere and living things

a)

carbon cycle

b)

tsnuami

c)

nitrogen cycle

d)

water cycle

29.
What is a niche?
a)
the place where a species lives
b)
what a species eats
c)
the role of a species
d)
how a species uses resources
30.
A food chain is a diagram of how 
a)
communities are connected
b)
energy and nutrients pass among organisms in an ecosystem
c)
producers make food
d)
an ecosystem develops and changes
31.
In an energy pyramid, 
a)
the organisms in each level eat those in the level below them
b)
the amount of energy increases as you move up each level
c)
producers are at the top
d)
the smallest organisms are at the top
32.

A chimpanzee eats fruits, nuts, leaves, and small mammals. What kind of organism is a chimpanzee?

a)

carnivore

b)

decomposer

c)

producer

d)

omnivore

33.

Which of the following is NOT an example of a predator with its prey?

a)

a fox and a rabbit

b)

a bear and a fish

c)

a honeybee and flower

d)

a spider and a fly

34.

Which statement is true about predators?

a)

a predator is an organism that eats other organisms

b)

a predator is an organism that is eaten by other organisms

c)

a predator can never be eaten by other organisms

d)

a predator is an organism that eats decaying organisms

35.

What type of relationship between organisms is one in which one organism benefits and the other is not affected?

a)

predation

b)

parasitism

c)

commensalism

d)

mutualism

36.

If a prey species becomes extinct, what else is most likely to happen?

a)

The climate the species lived in will change.

b)

The plants the species ate will also go extinct.

c)

The predators that eat the prey may be threatened.

d)

The habitats that the species lived in will be threatened.

37.
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.
38.
All the ponds in an area dried up during a drought. Which organism is most affected by the drought?
a)
deer
b)
frog
c)
hawk
d)
snake
39.
In an Energy Pyramid, the most energy is located...
a)
at the top
b)
at the bottom
c)
in the middle
d)
in the center
40.
A food web is composed of many...
a)
food webs
b)
food chains
c)
fast-food chains
d)
bike chains
41.
A consumer that eats only other organisms is called a
a)
herbivore
b)
carnivore
c)
omnivore
d)
scavenger
42.

What type of relationship is this?

a)

parasitism

b)

mutualism

c)

commensalism

d)

competition

43.

symbiotic relationship in which both organisms benefit

a)

competition

b)

mutualism

c)

predation

d)

commensalism

44.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
45.

The first organism in a food chain is ALWAYS a:

a)

producer

b)

consumer

c)

decomposer

d)

Any of the above

46.

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

47.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
48.

Rabbits introduced into Australia over 100 years ago have become a serious pest to farmers. Rabbit populations increases so much that they displaced many native species of plant eaters. What is the most logical explanation for their increased numbers?

a)

Rabbits have a high death rate.

b)

There are few effective predators.

c)

Additional rabbit species have been introduced.

d)

There is an increase in rabbit competitors.

49.

A bee receives nectar from a flower and carries the pollen to other flowers:

a)

predation

b)

parasitism

c)

mutualism

d)

commensalism

50.

The monkey would be a

a)

decomposer

b)

producer

c)

primary consumer

d)

secondary consumer

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