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Ecology Review

Total questions: 69

Worksheet time: 2hrs 14mins

Name
Class
Date
1.

Water temperature would be an example of ...

a)

a biotic factor.

b)

an abiotic factor.

2.
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
3.
A place where an organism lives.
a)
Terrain
b)
Habitat
c)
Community
d)
Population
4.

A collection of organisms that make up a community as well as all of the nonliving components of the environment.

a)

Population

b)

Community

c)

Habitat

d)

Ecosystem

5.

The role or job of a species in a community.

a)

habitat

b)

diet

c)

niche

d)

ecosystem

6.

Two organisms that are so similar they can interbreed in nature and produce fertile offspring.

a)

biotic factor

b)

herbivore

c)

ecosystem

d)

species

7.
Nonliving factor that affects an ecosystem...
a)
biotic factor
b)
abiotic factor
c)
food chain 
d)
biome
8.

What are the biotic factors in this image?

a)

sunlight, elephants, grasses

b)

sunlight, water, oxygen

c)

elephants, autotrophs, food supply

d)

precipitation, heterotrophs, soil

9.

What are the abiotic factors in this image?

a)

water, sunlight, dirt

b)

birds, plants, predators

c)

water, plants, parasites

d)

oxygen, water, grasses

10.
An ecosystem contains living and nonliving things.
a)
True
b)
False
11.
Which of the following is a population?
a)
hawks, barred owls, and eagles on NC coast
b)
mountain stream
c)
all the frogs in a pond
d)
blue-tailed skinks (lizards) around a barn
12.
Which of the following best describes a community?
a)
sharks, groupers, anemones and shrimp on a coral reef
b)
decorator crabs on the seafloor
c)
loggerhead sea turtles in Atlantic
d)
prairie grassland in Wyoming
13.

Earthworms break down leaves and other organic matter. When they burrow they increase the amount of air and water in the soil. Earthworms serve as food for many bird and salamander species. This best represents...

a)

niche

b)

circadian rhythm

c)

habitat

d)

predation

14.

Identify all the biotic factors from the list below:

a)

mites in a honeybee hive

b)

rotting log

c)

flooding after a tropical storm

d)

black rat snakes preying on mice

e)

pH drop in a crater lake

15.
What is a producers job in the ecosystem?
a)
to make food and oxygen for the animals
b)
to help plants grow
c)
to break down dead plants and animals
d)
to eat plants and other animals
16.
What are plants and animals that get their energy from eating other living things?
a)
producers
b)
consumers
c)
herbivores
d)
decomposers
17.
What part of a food chain only eats meat?
a)
omnivores
b)
producers
c)
herbivore
d)
carnivore
18.
Elephants only eat plants.  What kind of consumer is an elephant?
a)
producer
b)
omnivore
c)
herbivore
d)
carnivore
19.
Which of the following to omnivores eat?
a)
plants only
b)
meat only
c)
both plants and animals
d)
they make their own food
20.
What is a food web?
a)
a web created by a spider to trap its food
b)
a network of food chains in an ecosystem
c)
a community of plants and animals
d)
the food that one animal eats
21.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
22.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
23.
If a frog is the prey, what could be the predator?
a)
Grass
b)
Insect
c)
Snake
d)
Snail
24.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
25.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
26.
A third-level consumer has to be which type?
a)
Carnivore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
27.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
28.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
29.
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
30.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
31.
What is the order of succession shown in this figure?
a)
A, B, C, D
b)
B, A, D, C
c)
C, D, A, B
d)
D, A, B, C
32.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
ecological succession
c)
secondary succession
d)
intermediate
33.
What is the goal of the pioneer species in Primary Succession?
a)
To kill the dead materials after a disaster
b)
To rebuild soil
c)
To feed Johnny
d)
To put fresh oxygen into the air
34.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
35.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
36.
What is the name given to lichen or algae after a primary succession?
a)
pioneer species
b)
volunteer species
c)
founder species
d)
conqueror species
37.
After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?
a)
Lichens → Shrubs → Grasses → Trees
b)
Lichens → tree → shrubs→Grasses
c)
Grasses → Lichens → Shrubs → Trees
d)
Lichens → Grasses → Shrubs → Trees
38.
This is an example of...
a)
Secondary Succession
b)
Primary succession
c)
Utter and complete destruction! RAWR!
d)
Climax Communities
39.
The process of plants losing water through their leaves is called ____.
a)
condensation
b)
evaporation
c)
transpiration
d)
exhaling
40.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
41.
What converts nitrogen into a useable form for plants and animals?
a)
bacteria
b)
fungi
c)
rain
42.
Which nutrient is not cycled through the atmosphere?
a)
carbon
b)
nitrogen
c)
phosphorous
d)
water
43.

What cycle are fossil fuels part of ?

a)

carbon

b)

oxygen

c)

nitrogen

d)

phosphorus

44.
Carbon dioxide is added to the atmosphere by
a)
Burning fossil fuels 
b)
Cellular respiration
c)
Decomposing organic matter
d)
All answers are correct
45.
If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?
a)
It will increase.
b)
It will decrease.
c)
It will stay the same.
d)
It will fluctuate.
46.
Largest number of individuals of a population that the environment can support...  
a)
carrying capacity
b)
population crash
c)
lag phase
d)
mutualism
47.
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
48.
When a population grows past the ecosystem's carrying capacity, what happens to the population?
a)
Continues to grow
b)
The population starts to die off to return to carrying capcity
c)
The population will go extinct due to lack of resources
d)
The population grows then finds a new carrying capacity
49.
Food, water, sunlight, shelter, and space are resources that are often __________.
a)
limiting factors
b)
wet
c)
messy
d)
found in rocks
50.
In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?
a)
Squirrel Population
b)
Sunlight
c)
Grass available
51.
When organisms move out of the population, this is known as
a)
emigration
b)
abandonment
c)
immigration
d)
succession
52.
which statement sounds accurate based on the graph data. 
a)
The zebra and lions do not affect each other
b)
when lions population increases, so does the zebra population
c)
When the zebra population increases, it causes the lion population to also increase
d)
when zebra populations go down, the zebra population goes up. 
53.
Which kind of growth does the human population follow? It is described as a J-shaped curve.
a)
Exponential Growth
b)
Logistic Growth
c)
Outstanding Growth
d)
Minimal Growth
54.
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
55.
What type of growth is represented behind?
a)
exponential
b)
logistics
c)
a good kind
d)
representative
56.
What point on the graph represents the carrying capacity?
a)
A
b)
B
c)
C
d)
D
57.

Which of the following are density dependent factors?

a)

competition for resources

b)

predation

c)

disease

d)

natural disasters

58.

Which of the following are examples of a density independent factors?

a)

forest fire

b)

seasonal cycles

c)

storms

d)

disease

59.

This graph shows ....

a)

When one population increases, the other decreases.

b)

When one population decreases, the other increases.

c)

When one population increases, the other increases instantly.

d)

When one population increases, it causes the other to increases shortly after.

60.

What is the general term used to describe the interaction between two different organisms that are living in close physical association?

a)

photosynthesis

b)

symbiosis

c)

habitat

d)

prey

e)

omnivore

61.

The animal in an ecological relationship that results in another animal being hunted, killed, and eaten…

a)

autotroph

b)

habitat

c)

predator

d)

herbivore

e)

producer

62.

An ecological symbiotic relationship between two organisms where one benefits and the other is harmed…

a)

parasitism

b)

herbivore

c)

mutualism

d)

carnivore

e)

commensalism

63.

What you would call an ecological symbiotic relationship between two organisms where one benefits, but the other is not helped or harmed?

a)

mutualsim

b)

predator

c)

commensalism

d)

parasitism

e)

herbivory

64.

What ecological relationship is depicted between Pumba (warthog) and the bugs?

a)

Competition, because pumba is in competition with the bugs for food sources

b)

Mutualistic, because Pumba and the bugs benefit each other

c)

Predator-Prey, because Pumba is a predator that consumes bug as prey

65.

Marlin and his son, Nemo, are clownfish that live in a sea anemone. Clownfish benefit by receiving protection and shelter from the sea anemone. The clownfish, in return, scares away predators of the sea anemone and provides nutrients for the sea anemone through its excrement (waste). The symbiotic relationship between Nemo and the sea anemone is known as -

a)

parasitism

b)

commensalism

c)

predator-prey

d)

competition

e)

mutualism

66.

The pearlfish receives protection from predators by living inside a sea cucumber. The sea cucumber is not affected during this interaction. This ecological relationship is known as -

a)

predator-prey because the pearlfish is prey to the sea cucumber

b)

mutualism because only the pearlfish benefits in this ecological relationship

c)

parasitism because the pearlfish causes harm to the host sea cucumber

d)

commensalism because only the pearlfish benefits while the sea cucumber is not affected

e)

competition because the sea cucumber and pearlfish often fight for living space

67.

A pair of red, male kangaroos are seen fighting over a potential mate. The ecological relationship between the two male kangaroos shown is -

a)

Commensalism

b)

Mutualism

c)

Predator-Prey

d)

Competition

68.

A tapeworm lives in the intestine of a cat absorbing nutrients through its skin. A tapeworm and a cat have this type of relationship.

a)

mutualism

b)

parasitism

c)

commensalism

d)

competition

69.
What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation

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