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Ecology

Total questions: 70

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

Look carefully at the image. If energy is lost as it moves up the food chain, what trophic level has the most amount of energy?

a)

1st level - producers

b)

2nd level - primary consumers

c)

3rd level - secondary consumers

d)

4th level - tertiary consumers

2.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)

They show what direction the energy is moving between organisms. 

d)
They represent how water is transferred within a habitat.
3.

Producers get energy from ​ (a)  

primary consumers eat ​ (b)  

secondary consumers eat ​ (c)  

tertiary consumers eat ​ (d)   ​

organisms that no one else eats are ​ (e)  

Choose from the below words
the sun
producers
primary consumers
secondary consumers
top predators
4.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
5.

What is the source of energy for all living things?

a)

water

b)

air (oxygen)

c)

the sun

d)

electricity

6.

Correctly label each trophic level

a)

apex predator

b)

producers

c)

primary consumers

d)

secondary consumers

e)

tertiary consumers

1
2
3
4
5
1)
2)
3)
4)
5)
7.

Organize these options into the right categories

Categorize the following
Sunflower
Apple tree
Wheat plant
Rabbit
Human
Goat
Bacteria
Earthworm
Mushroom
Producer
Consumer
Decomposer
8.

A diagram that shows the amount of energy that moves from one feeding level to another is termed a(n) _________.

a)

energy pyramid

b)

adaptation

c)

autotroph

d)

food web

9.

A system of food chains that shows the transfer of energy is termed a ____________.

a)

food web

b)

food chain

c)

prey

d)

predator

10.

An organism that can produce its own food through photosynthesis is a(n) ______________.

a)

consumer

b)

heterotroph

c)

autotroph

d)

herbivore

11.
Which of these is an example of an autotroph?
a)
Sunflower
b)
Krill
c)
Leopard
d)
Hummingbird
12.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
13.
Which of the following is NOT a consumer
a)
grass
b)
dog
c)
shark
d)
fish
14.
A frog eats a fly. The frog and fly are demonstrating ________.
a)
mutualism
b)
competition
c)
predator/prey
d)
parasitism
15.
What do we call a type of consumer that only eats the remains of dead organisms?
a)
Consumer
b)
Third level consumer
c)
scavenger
d)
omnivore
16.
An organism that gets energy from eating other organisms is a ______________
a)
producer
b)
consumer
c)
decomposer
17.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
18.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
19.
The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain members of the plant kingdom?
a)
A
b)
B
c)
C
d)
D
20.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
21.
A MUSHROOM is a
a)
Herbivore
b)
Carnivore
c)
Omnivore
d)
Decomposer
22.

What does an energy pyramid show?

a)

Energy flow in a community

b)

Longest lifespans

c)

The stronger animal the higher it is on the pyramid

23.

What would happen if their were no producers?

a)

Every population would grow larger

b)

Everything would die out

c)

The animals would make their own food

24.

What is the main reason for the energy loss at each trophic level in an energy pyramid?

a)

Energy is lost as heat due to metabolic processes.

b)

Organisms use all the energy they consume for growth.

c)

Energy is stored and not lost.

d)

Energy is converted to light and radiated away.

25.
In an energy pyramid, energy_______ as you move up the pyramid.
a)
Increases
b)
Decreases
c)
Stays the same
d)
Changes up and down
26.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
27.

Many ecosystems can be sustained by chemosynthesis that starts at undewater thermal vents and isolated cave water.

a)

True

b)

False

28.

What is climate?

a)

the condition of the atmosphere at any given time and place

b)

cloud cover and temperature

c)

precipitation and humidity at a given time and place

d)

weather patterns and average conditions in an area over a long period of time

29.

If an organism is extinct, that means

a)

It has good reaction times

b)

It is close to having no alive members of its species

c)

It has too many individuals living in the same ecosystem

d)

its population declines to zero: no living members remain. (zero)

30.

Having a variety of organisms in an ecosystem would be

a)

endangered

b)

Biological diversity

c)

ecosystem

d)

Abiotic

31.

Carrying Compacity

a)

How many organisms an ecosystem can hold and sustain.

b)

Means the ecosystem is overpopulated

c)

How much candy you can carry

d)

Is an endangered species

32.

A limiting factor...

a)

is extinct

b)

means overpopulated

c)

Is endangered

d)

is Something that stops the growth or causes a decline in population.

33.

Biotic means...

a)

Living

b)

nonliving

c)

Biotic and abiotic factors working together

d)

Organisms competing for the same resources

34.

Abiotic means....

a)

Living

b)

squirrels

c)

nonliving

d)

Adaptations

35.

Biological competition is....

a)

Organisms competing for different resources.

b)

Organisms competing for the same resources

c)

living things

d)

nonliving things

36.

An example of a biotic organism is

a)

Fire

b)

Rivers

c)

Fallen tree

d)

Rock

37.

The non-living parts of an organism's environment are called...

a)

community

b)

biotic factors

c)

habitat

d)

abiotic factors

38.

Choose the correct levels of Organization from lowest to highest...

a)

population, community, ecosystem, organism

b)

organism, population, community, ecosystem

c)

organism, population, ecosystem, community

39.

A community is a level in organization that is....

a)

made of populations of different species that live in the same place and interact.

b)

a single individual species of organisms that are similar.

c)

all the individual organisms of the same species in the same place.

40.

When organisms move into a certain population they are ____________________ .

a)

emigrating

b)

sampling

c)

habitating

d)

immigrating

41.

When an organism leaves a population they are ____________________

a)

emigrating

b)

immigrating

c)

unpopulating

42.

Food, Water, Space and Weather are all examples of a ___________________ in an environment.

a)

population

b)

limiting factor

c)

carrying capacity

43.

True or False: A organism is a single individual of a species that are physically similar and can reproduce.

a)

True

b)

False

44.

Which of the following conditions would lead to logistic population growth? 

a)

Parasitism

b)

unlimited food

c)

No predators

d)

No disease

45.

What adds carbon to the atmosphere?

a)

volacnoes

b)

cellular respiration

c)

burning fossil fuels

d)

all of the above

46.
The warming of the atmosphere by the trapping of heat being radiated to space is called
a)
evaporation
b)
condensation
c)
the greenhouse effect
d)
radiation
47.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

48.

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

49.

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

50.

What type of growth is demonstrated in the graph?

a)

Exponential

b)

Carrying capacity

c)

Linear

d)

Negative

51.

Logistic population growth can be described as

a)

growth when resources are limited

b)

a s-shaped curve

c)

reaching carrying capacity

d)

all of the above

52.

Exponential Growth occurs when-

a)

populations have plenty of food/space

b)

home to keystone species

c)

have few evasive species in a habitat

d)

have little to no competition or predators

53.

Logistic growth displays a ____-shaped curve which indicates a population size capped at carrying capacity.

a)

J

b)

S

c)

C

d)

V

54.

The sum of a species' use of the biotic and abiotic resources in its environment (think about the role that the species may have)

a)

ecological niche

b)

habitat

c)

home

d)

area

55.
What is symbiosis?
a)
Two species that never interact
b)
Two similar species that live close together and interact
c)
Two different species that live close together and interact
d)
Symbols created by two species
56.
What is competition?
a)
Two organisms compete over limited resources
b)
One organism competes over limited resources
c)
Two organisms share limited resources
d)
A basketball game
57.
Competition between two organisms of different species is called?
a)
Interspecific
b)
Intraspecific
c)
Inter-species
d)
You and your cousins
58.
What relationship is this?
a)
Parasitism 
b)
Intraspecific
c)
Predation
d)
Mutualism
59.
What type of competition does this picture show?
a)
Interspecific
b)
Commensialism
c)
Intraspecific
d)
Friendly
60.
In which symbiotic relationship would both organisms benefit? 
a)
Commensalism
b)
Parasistism
c)
Mutualism
d)
Predation
61.
Which symbiotic relationship does this picture show?
a)
Mutualism
b)
Parasitism
c)
Commensalism
d)
Predation
62.
Commensalism is when...
a)
One species is hurt, but the other benefits
b)
One species benefits and the other is unaffected
c)
Both species benefit
d)
One species dies, but the other is fed
63.
Two male birds fight over a female bird until one male bird gives up and flies away. This is an example of what?
a)
Intraspecies competition
b)
Mutualism
c)
Interspecies competition
d)
Parasitism
64.

Which limiting factor is density independent?

a)

water

b)

food

c)

natural disasters

65.

An environmental factor such as amount of space, disease, and availability of mates that depends on the number of members in a population is called

a)

density- dependent factor

b)

density- independent factor

66.
What is formed during primary succession that doesn't need to be formed during secondary succession?
a)
pioneer species
b)
soil
c)
climax community
d)
lichens
67.
After a forest fire, an ecosystem would start regrowth through -
a)
primary succession
b)
secondary succession
c)
climax community
d)
limiting factors
68.
succession that occurs in an area with no soil
a)
ecological succession 
b)
primary succession 
c)
secondary succession
d)
pioneer speciles
69.
starts with bare rock followed by lichen
a)
primary succession 
b)
secondary succession
c)
both types of succession
70.

What best describes the term succession?

a)

rapid changes that create an ecosystem overnight

b)

gradual changes over time to fully create or restore and ecosystem

c)

forest with the tallest trees

d)

the rate species produce offspring

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