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Interdependence of Life

Total questions: 60

Worksheet time: 2hrs 30mins

Name
Class
Date
1.

Which of the following is an example of symbiosis?

a)

A mother bear taking care of her cub

b)

A married couple who agree to split their rent and share housework duties.

c)

A worm living in a cow's intestine.

d)

One chimp cleaning and grooming the hair of another chimp.

2.

How is commensalism different from mutualism?

a)

In commensalism, one species benefits while the other is unharmed; in mutualism, both species benefit

b)

In commensalism, one species is harmed while the other benefits; in mutualism, both species benefit

c)

In commensalism, neither species is harmed; in mutualism, one species is harmed

d)

In commensalism, both species benefit; in mutualism, one species is harmed

3.

Which of the following is an example of a parasite?

a)

A flea

b)

An orchid

c)

An Egyptian plover

d)

The bacteria that live in human intestines

4.

When a honeybee pollinates flowers, the bee gets access to nectar, while the flowers gain the chance to reproduce. This is an example of:

a)

Amensalism

b)

Commensalism

c)

Parasitism

d)

Mutualism

5.

Remoras are fish that swim alongside sharks, eating scraps that the sharks leave behind. This is an example of:

a)

Amensalism

b)

Commensalism

c)

Parasitism

d)

Mutualism

6.

Which of the following is an example of a host organism?

a)

An Egyptian plover

b)

An orchid

c)

A dog with fleas

d)

A botfly

7.

A parasite cannot survive without a host organism.

a)

True

b)

False

8.

This is any close relationship between any two different species in an ecosystem

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

9.

Both species benefit

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

10.

One species benefits, the other is unaffected

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

11.

One species benefits, the other species is harmed

a)

symbiosis

b)

parasitism

c)

mutualism

d)

commensalism

12.
__________ is an organism that only eats plants for energy.
a)
Carnivore
b)
Herbivore
c)
Omnivore
d)
Terivore
13.
__________ is an organism that only eats meat for energy.
a)
Omnivore
b)
Borivore
c)
Herbivore
d)
Carnivore
14.
__________ is an organism that eats BOTH plants and animals for energy.
a)
Omnivore
b)
Darnivore
c)
Carnivore
d)
Herbiovre
15.
Organisms that hunt other organisms for food are called __________.
a)
predators
b)
prey
c)
producers
d)

none of the above

16.

The animals predators catch and eat are called...

a)

herbavores

b)

omnivores

c)

carnivores

d)

prey

17.

Why is the carbon cycle important to living things?

a)

it converts carbon from a liquid to a gas.

b)

it converts nitrogen to a usable form.

c)

it converts nitrogen to a usable form.

d)

it transports the materials cells use for energy.

18.

Which of the following can cause nitrogen fixation?

a)

combustion

b)

forest fire

c)

fossil fuels

d)

some bacteria

19.
Which is a producer?
a)
deer
b)
tall grass
c)
lion
d)
worm
20.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
21.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
22.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
23.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
24.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
25.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a ecosystem.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
26.
What is missing from this food chain?
Grass > Grasshopper > Bird > Snake
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
27.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
28.
If the grasshopper were to be removed completely from the food web, what organism would be most effected?
a)
The squirrel
b)
The shrew
c)
The deer
d)
The rabbit
29.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
30.
A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.
a)
Population
b)
Community
c)
Habitat
d)
Ecosystem
31.
An ecosystem contains living and nonliving things.
a)
True
b)
False
32.
Nonliving factor that affects an ecosystem...
a)
biotic factor
b)
abiotic factor
c)
food chain 
d)
biome
33.

Living factors or organisms that affect an ecosystem...

a)

abiotic factors

b)

species

c)

trophic level

d)

biotic factors

34.
The smallest unit of life that can sustain itself is called...
a)
an organism.
b)
the biosphere.
c)
a population.
d)
a community.
35.
The temperate decisuous forest, the tropical rain forest, the desert, and the tundra are all examples of...
a)
the biopshere.
b)
biomes.
c)
ecosystems.
d)
communities.
36.

Andrea is on the girls cross country team. She is heading out for a run when she comes across 20 Canadian geese.  What level of organization is this group of Canadian geese?

a)

organism

b)

population

c)

community

d)

biome

37.

Jacob is going out to his grandparents' farm. On the farm is a stream that he likes to fish at. When he is fishing, he sees many different species of fish as well as maple and oak trees and dragonflies. What Jacob is seeing is an example of what level of organization?

a)

organism

b)

population

c)

community

d)

ecosystem

38.
Abby is walking to school with her best friend Jaylyn. They begin talking about everything they see including the ash trees, grass, weeds, ants, and people. They also notice how cold it is, how there are several large puffy clouds out, and how the sun is just starting to come up.  What level of organization are they discussing?
a)
community
b)
ecosystem
c)
biome
d)
biosphere
39.
The correct order of ecological organization from the smallest to the largest is _______________.
a)

organism, community, population,

biosphere, ecosystem

b)

biome, ecosystem, community, population, organism

c)

organism, population, community, ecosystem, biome

d)

population, organism, biosphere, community, ecosystem

40.
What are the abiotic factors in this image? 
a)
water, sunlight, dirt, air
b)
birds and plants
c)
water, plants, and birds 
41.

What level of organization can be seen here?

a)

Species

b)

Population

c)

Community

d)

Ecosystem

42.

What are three examples of biotic factors?

choose 3 !

a)

skunk

b)

rocks

c)

bacteria

d)

water

e)

coral

43.

Which of the following is the correct order in a food chain?

a)

sun, producers, herbivores, scavengers, carnivores.

b)

sun, consumers, predators, parasites, hosts.

c)

sun, producers, decomposers, consumers, omnivores.

d)

sun, producers, herbivores, carnivores, scavengers.

44.

The base of an energy pyramid represents which organisms in an ecosystem?

a)

carnivores

b)

herbivores

c)

omnivores

d)

producers

45.

"Nature's recyclers" are ...

a)

decomposers

b)

producers

c)

primary consumers

d)

secondary consumers

46.

Why is the carbon cycle important to living things?

a)

It transports wastes in organisms.

b)

It converts nitrogen to a usable form.

c)

It is an important building block of organisms.

d)

It converts carbon from a liquid to gas.

47.

Which of the following statements is true about the water cycle?

a)

Water is continually being recycled on Earth.

b)

Water is not necessary to life on Earth.

c)

Water is continually being produced on Earth.

d)

Water is continually being reduced on Earth.

48.

Which of the following describes an interaction in which one organism kills and eats another?

a)

predation

b)

mutualism

c)

producing

d)

I don't know

49.

What is the role of fungi in food webs?

a)

scavenger

b)

producer

c)

decomposer

d)

none of the above

50.

How much energy is transferred between trophic levels?

a)

1%

b)

10%

c)

100%

d)

1,000%

51.

Which of these is an autotroph?

a)

consumer

b)

decomposer

c)

producer

d)

none of the above

52.

Which of the following is a heterotroph?

a)

consumer

b)

sun

c)

producer

d)

water

53.

Food chains form food webs.

a)

True

b)

False

54.
A large increase in the number of birds in the 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. 

55.
Identify a consumer in this food web that eats producers.
a)
grass
b)
squirrel 
c)
vulture
d)
cougar
56.

What do the arrows in the diagram represent?

a)

flow of energy

b)

life cycle stages

c)

ecological succession

d)

renewable resource deletion

57.

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

58.

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

59.

What is the hawk in the food web?

a)

Producer

b)

Primary consumer

c)

Secondary consumer

d)

Tertiary consumer

60.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse

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