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Final review ecology

Total questions: 75

Worksheet time: 2hrs 31mins

Name
Class
Date
1.
What is a producer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
2.
What is a consumer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
3.
What is a decomposer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
4.
What do Omnivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
5.
What animal is on the top of the food chain? 
*Remember Humans are on the top of all food chains because we do not get hunted. 
a)
Grass
b)
Grasshopper
c)
Mouse
d)
Owl
6.
Who is the producer in this food chain? 
a)
Grass
b)
Grasshopper
c)
Mouse
d)
Ow
7.
Who does the grasshopper get energy from? 
a)
Grass
b)
Grasshopper
c)
Mouse
d)
Ow
8.

Which of these organisms would receive energy from the snake?

a)

Plant

b)

Rabbit

c)

Mouse

d)

Hawk

9.

The food web supports which statement?

a)

Organisms are independent from one another.

b)

Each organism has its own, unique food source.

c)

Matter cannot move from one organism to

another.

d)

Matter can be recycled between organisms

and their environment.

10.

Which organisms compete for food in the food web to the

right?

a)

Orca and Herring

b)

Seal and Copepod

c)

Killifish and Snapper

d)

Mackerel and Bluefish

11.

What's the role of consumers in a food chain?

a)

Use sunlight to make food

b)

Eat other species and keep them from overpopulating

c)

Break down dead stuff

d)

Add nutrients to the soil

12.

Which of these organisms would receive energy from the snake?

a)

Plant

b)

Rabbit

c)

Mouse

d)

Hawk

13.

Which type of consumer is always a first consumer?

a)

Herbivore

b)

Omnivore

c)

Carnivore

d)

Producer

14.

Which type of consumer could be a first or second consumer?

a)

Herbivore

b)

Omnivore

c)

Carnivore

d)

Producer

15.

If the RABBITS became diseased, which organisms would also be NEGATIVELY affected?

a)

Grass and hawks

b)

Grass and snakes

c)

Grass, snakes, and hawks

d)

Snakes and hawks

16.

If the RABBITS became diseased, which organisms would also be POSITIVELY affected?

a)

Grass

b)

Snakes

c)

Nobody (all hurt)

d)

Hawks

17.

Which of the following is not true about predator-prey relationships?

a)

Predators lower the size of prey populations

b)

If a prey population grows, the predator population will grow too

c)

Predators hunt/eat prey.

d)

If a predator is removed, the prey population will die off.

18.

Why are the lower levels of the energy pyramid bigger than the top levels?

a)

The bottom is for larger animals.

b)

The bottom levels don't need as much energy.

c)

The top levels get energy (eat) the lower levels.

d)

The top levels have fewer predators for they are smaller.

19.
In this food pyramid, which level has the greatest amount of energy?
a)
Producers
b)
Primary Consumers
c)
Secondary Consumers
d)
Tertiary Consumers
20.
How much energy is passed from one trophic level to the next?
a)
1%
b)
10%
c)
50%
d)
100%
21.
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. 
22.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them. 
b)
They may eat more than one other organism. 
c)
This organism gets its energy from multiple sources. 
d)
They have no resources available to them.
23.
The direction of the flow of energy in a food web is represented by ___.
a)
Light bulbs
b)
Dotted Lines
c)
Arrows
d)
Bubbles
24.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
25.

In a food web, arrows point in just one direction because they show

a)

which animal is bigger.

b)

which animals are related.

c)

how energy goes to the animal that is eating.

d)

how energy goes to the animal that is eaten.

26.

Using the food web which of the following is a primary consumer?

a)

butterfy

b)

snake

c)

fox

d)

frog

27.

Using the food web which of the following is a tertiary consumer?

a)

frog

b)

bird

c)

eagle

d)

worm

28.

Using food web what is the highest trophic level?

a)

1

b)

2

c)

3

d)

5

29.

What % of energy is passed from organism to organism?

a)

100%

b)

10%

c)

5%

d)

25%

30.

The graph shows that

a)

wolf population control the rabbit population

b)

the rabbit population control the wolf population

c)

the two populations do not affect each other

d)

wolves do not hunt rabbits

31.

Last name, first name

4 lines
32.
An area where an organism finds food, shelter and water in a specific arrangement
a)
niche
b)
biosphere
c)
biome
d)
habitat
33.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
34.
Different populations living and interacting with each other in the same area
a)
Biome
b)
Ecosystem
c)
Community
d)
Niche
35.

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

36.

What is a Niche of a honeybee?

a)

Pollenating Flowers

b)

A Honeycomb

c)

Eating other insects.

d)

Swimming.

37.

This is an example of population, branch of the ecological levels of organization:

a)

A pack of wolves

b)

A dog

c)

A turtle interacting with a lizzard

d)

A squirrel on a tree

38.
Temperature, sunlight, and water are examples of _______ factors.
a)
biotic
b)
abiotic
39.

This is the study of organisms and their interactions with the environment.

a)

Biology

b)

Geology

c)

Chemistry

d)

Ecology

40.

Select all the items here that are biotic factors.

a)

Water

b)

Predators

c)

Grass

d)

Dirt

e)

Trees

41.

The picture shows this level of organization:

a)

Community

b)

Population

c)

Individual

42.

A scientist is studying how a group of prairie dogs in an area and how they spread out in thier dens. What level of ecology is she studying

a)

population ecology

b)

community ecology

c)

ecosystem ecology

d)

Niche ecology

43.

1. You are hit by an asteroid on your way to get a delicious ice cream treat. The asteroid is what kind of factor on your ability to enjoy your ice cream treat?

a)

biotic

b)

abiotic

44.

The only species in the picture that can cross the volcano is the unicorn. How many TOTAL populations are shown below?

a)

1

b)

2

c)

3

d)

4

45.
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. 
46.

The only species in the picture that can cross the volcano is the unicorn. How many communities are shown below?

a)

1

b)

2

c)

3

d)

4

47.

The only species in the picture that can cross the volcano is the unicorn. How many TOTAL populations are shown below?

a)

1

b)

2

c)

3

d)

4

48.

The smileys and pacmen are free to move in this area. How many populations of smiley's are there?

a)

1

b)

2

c)

3

d)

4

49.

The largest number of individuals that an environment can support long term is...

a)

carrying capacity

b)

emigration

c)

immigration

d)

population density

50.

What happens if a population grows past its carrying capacity?

a)

The population keeps growing

b)

The population starts to die off

c)

The entire species will go extinct

d)

The carrying capacity just increases

51.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

52.

Something that regulates the size of a population is called...

a)

a limiting measure

b)

a limiting factor

c)

carrying capacity

d)

biodiversity

53.

What are factors that affect carrying capacity?

a)

Biotic only

b)

Biotic and abiotic

c)

Depends on the ecosystem

d)

Abiotic only

54.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

55.

What is the carrying capacity of the graph?

a)

around 500

b)

more than 800

c)

less than 300

d)

around 700

56.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
57.

A scientist was studying a population of fish in a pond over a period of 10 years. He observed that the population increased each year for 3 years, and then remained nearly constant for the rest of the study. The best explanation for this observation is that the population had

a)

stopped reproducing

b)

reached carrying capacity

c)

mutated into a different species

d)

run out of food and all died

58.

The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

a)

It will decrease.

b)

It will increase.

c)

It will remain the same.

59.

In the graph to the right, what is the population of deer at the carrying capacity of the environment?

a)

3

b)

7

c)

70

d)

40

60.
What is the carrying capacity for this sheep population?
a)
1.8 million
b)
1.25 million
c)
1.6 million
d)
1.o million
61.

What does the yellow line represent?

a)

exponential growth

b)

logistic growth

c)

carrying capacity

d)

none of the above

62.

Carrying capacity is...

a)

The lowest number of organisms in an ecosystem.

b)

The total number of organisms in an ecosystem.

c)

The maximum number of organisms an ecosystem and its resources can support.

d)

The number of living organisms in an ecosystem.

63.

When resources are not available a population will _____________ in size.

a)

Increase

b)

Decrease

c)

Stay the same

64.
The ecological niches of three bird species are shown in the diagram. What is the advantage of each bird species having a different niche?
a)
As more birds feed higher in the tree, available energy increases.
b)
More abiotic resources are available for each bird.
c)
Predators are less likely to feed on birds in a variety of locations.
d)
There is less competition for food.
65.

A niche ________________.

a)

is the function that an organism performs in the food web of that community.

b)

includes everything else the organism does and needs in its environment.

c)

is specific to each individual animal and plant.

d)

All of the above.

66.
What factor would cause animals of the same species to begin competing with one another?
a)
increase in precipitation         
b)
the presence of decomposers
c)
the introduction of a new food source
d)
limited supply of resources
67.
Different species are most likely to compete for resources in an ecosystem if both species attempt to –
a)
occupy the same niche.
b)
successfully reproduce.
c)
live in different habitats.         
d)
find different food sources.   
68.

An organism's ______________ is the place in which it lives and hunts for food.

a)

limiting factor

b)

carrying capacity

c)

habitat

d)

competition

69.

A description of the bald eagle habitat and niche: eats small fish, is a carnivore, can be found living in trees of the grassland near rivers. Which of the following is an example of a biotic factor of the bald eagle habitat

a)

trees

b)

carnivore

c)

rivers

d)

eats small fishes

70.

Which diagram shows both biotic and abiotic factors making-up the ecosystem level

a)

a

b)

b

c)

c

d)

d

71.

500,000 raccoons live in the same habitat, They are considered a ____________________

a)

species

b)

community

c)

population

d)

biomes

72.

Polar bears have physical features that allow them to live in colder places like the Arctic, where as the the brown bear is better suited to live in the woodlands. Which of the following key term best describes theses descriptions

a)

niche

b)

habitat

c)

dwelling place

d)

house

73.

In a deciduous forest habitat of Canada, there are populations of deer, oak trees, foxes and rabbits. Which level of organization best describes this description

a)

ecosystem

b)

biomes

c)

community

d)

biosphere

74.

Which of the following is true about habitats and niches

a)

organisms can share same habitat but not the same niche

b)

organisms can share both habitats and niches

c)

Organisms can share the same niche but not the same habitat

d)

organisms cannot share the same habitat or niche

75.

Which of the following best describes the diagram

a)

identifying niches of similar birds

b)

identifying habitats of similar birds

c)

identifying both niches and habitats of similar birds

d)

identifying different adaptations of similar birds

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