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Ecology/Biodiversity Review

Total questions: 62

Worksheet time: 35mins

Name
Class
Date
1.

Snakes eat other animals for food. Snakes are considered __________.

a)

Autotrophs

b)

Prey

c)

Carnivores

d)

Herbivores

2.

Process where organisms having certain inherited traits are better able to survive and reproduce in their environment is called ___________.

a)

genetics

b)

natural selection

c)

artificial selection

d)

principals of inheritance

3.

Which of the following are producers?

a)

Muscrats

b)

June bugs

c)

Mice

d)

Crab grass

4.

Which of the following is an abiotic factor?

a)

Climate

b)

Precipitation

c)

Wind patterns

d)

All the above

5.

Which of the following is a predator/prey relationship?

a)

Owls eating mice

b)

Bunnies eating shrubs

c)

Bears eating berries

d)

Worms eating decaying matter

6.

What is the ultimate source of energy in an ecosystem?

a)

The sun

b)

Producers

c)

Glucose

d)

Decomposers

7.

Which of the following is a heterotroph?

a)

Mushroom

b)

Wheat grass

c)

Phytoplankton

d)

Spider

8.

What belongs at the bottom of an energy pyramid?

a)

Producer

b)

Predator

c)

Consumer

d)

Decomposer

9.

Which of the following is an example of secondary succession?

a)

An island emerging from the sea

b)

A farmland regrowing after a tornado

c)

A volcano spewing lava on land

d)

A glacier retreats to reveal new land

10.

____________ is a characteristic that improves an organisms ability to survive in an environment.

a)

Habitat

b)

Biodiversity

c)

Adaptation

d)

Natural Selection

11.

__________ is an organism that can make it's own food.

a)

Heterotroph

b)

Consumer

c)

Autotroph

d)

Decomposer

12.

Which of the following is a producer/consumer relationship?

a)

Owls eat mice

b)

Rabbits eat shrubs

c)

Wolves eat deer

d)

Bears eat salmon

13.

Which of the following would you NOT find at the top of an energy pyramid?

a)

shark

b)

hawk

c)

wolf

d)

rabbit

14.

What's the greatest benefit to having strong biodiversity?

a)

Organisms will constantly compete for resources.

b)

The food web is small but strong.

c)

The ecosystem will be strong and resilient.

d)

There is no benefit.

15.

Who could be affected if the number of birds decreased?

a)

only the birds

b)

only the grasshoppers and grains

c)

only the foxes

d)

all of the organisms shown

16.

Which of the following organisms compete for the same food source?

a)

grasshoppers and grains

b)

rabbits and mice

c)

mice and grasshoppers

d)

foxes and owls

17.

Who could be affected if the number of leaves decreased?

a)

only the caterpillars

b)

only the grasshoppers and rabbits

c)

only the grass

d)

all of the organisms shown

18.

Which of the following organisms DO NOT compete for the same food source?

a)

grasshoppers and rabbits

b)

hawks and blue jays

c)

owls and hawks

d)

caterpillars and rabbits

19.

How do producers (like plants) get their energy to survive and reproduce?

a)

competing for sunlight

b)

disguising themselves from consumers

c)

releasing more oxygen into the environment

d)

more biotic factors relying on them

20.

Which of the following trophic levels would have the least amount of energy?

a)

tertiary consumer

b)

producer

c)

secondary consumer

d)

primary consumer

21.

How much energy is passed from one trophic level to the next?

a)

10%

b)

90%

c)

50%

d)

100%

22.

What type of organism returns nutrients from dead organisms to the soil?

a)

decomposers

b)

insects

c)

scavengers

d)

carnivores

23.

An ecosystem with many different species living there has...

a)

low biodiversity

b)

invasive species

c)

high biodiversity

d)

overpopulation

24.

As animals eat other animals, what form of energy is transferred?

a)

radiant

b)

chemical

c)

sound

d)

electrical

25.

All of the following are threats to biodiversity except...

a)

overfishing

b)

polluting the groundwater

c)

commercial farming

d)

creating national parks

26.

Which trophic level relies on sunlight for energy?

a)

producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

27.

Which animal receives the most energy originally produced by the plants in the food web?

a)

rabbit

b)

owl

c)

frog

d)

snake

28.

In the food web above, a large decrease in the number of rats will cause ____.

a)

an increase in the number of ants, tarantulas, and snakes

b)

an increase in the number of snakes, coyotes, and hawks

c)

a decrease in the number of snakes, coyotes, and hawks

d)

a decrease in the number of cacti and sagebrush plants

29.

Which human activity most directly causes a

significant increase in the amount of carbon dioxide

in the atmosphere?

a)

growing corn for food

b)

not using products containing plastics

c)

driving cars long distances

d)

planting large numbers of trees

30.

Carbon dioxide and oxygen are important resources

in ecosystems and are

a)

recycled through the activity of living and

nonliving systems

b)

stored in the animals of the ecosystem

c)

lost due to the activities of decomposers

d)

released by the process of photosynthesis

31.

The term for the variety of life in the world or in a particular habitat or ecosystem.

a)

Biodiversity

b)

succession

c)

food web

d)

carrying capacity

32.

If a species becomes extinct the....

a)

biodiveristy increases

b)

biodiversity decreases

33.

True or false? Invasive species are not native to a particular habitat and may lead to a population drop in native species due to increased competition or predation.

a)

true

b)

false

34.

True or false? Occupation of different niches by species will decrease competition between those species.

a)

true

b)

false

35.
What is the term for all the different species in a given area?
a)
population
b)
ecosystem
c)
community
d)
biome
36.
Wind is considered to be an abiotic factor because it _____________.
a)
is not related to biodiversity
b)
is a nonliving thing
c)
is in equilibrium
d)
is not in any ecosystem
37.
A moose is considered to be a consumer because it ____________.
a)
gets energy by eating other resources
b)
makes its own food
c)
forms carbohydrates using chemicals
d)
uses sunlight for energy
38.
A model that shows a single sequence of feeding relationships is called a _________.
a)
trophic level
b)
food chain
c)
food web
d)
all of the above
39.
What does this diagram show?
a)
the nitrogen cycle
b)
the water cycle
c)
the oxygen cycle
d)
the carbon cycle
40.
All the biotic and abiotic factors in a given area makeup __________.
a)
a habitat
b)
a community
c)
an ecosystem
d)
a population
41.
The place where an organism lives is known as its ______________.
a)
niche
b)
habitat
c)
community
d)
behavior
42.
Which of these is an example of parasitism?
a)
A lion defends its territory
b)
A squirrel stores food in a tree hole
c)
A leech feeds on a host's blood
d)
A polar bear kills and eats a seal
43.
Animals such as lions that consume only other animals
a)
Omnivore
b)
Carnivore
c)
Decomposer
d)
Herbivore
44.
Animals such as horses and deer that consume only plants
a)
Omnivore
b)
Carnivore
c)
Decomposer
d)
Herbivore
45.
Organisms such as fungi and bacteria that break down dead plants or animals
a)
Autotroph
b)
Carnivore
c)
Decomposer
d)
Herbivore
46.
Animals such as bears that consume both plants and other animals
a)
Autotroph
b)
Carnivore
c)
Omnivore
d)
Herbivore
47.
A wolf catches and eats a rabbit.
a)
Predation
b)
Parasitism
c)
Competition
d)
Mutualism
48.
A flea lives on a dog and bites the dog to get a meal of ever so delicious blood.
a)
Commensalism
b)
Mutualism
c)
Parasitism
d)
Predation
49.
Orchids grow on the sides of trees in the rain forest so it can get more sunlight. The orchid asks the tree, " Do I owe you anything?" The tree is like, "Nah, don't worry about it."
a)
Commensalism
b)
Mutualism
c)
Parasitism
d)
Competition
50.

Temperature, light, air, water, and soil are all _____ parts of the environment

a)

alive

b)

biotic

c)

abiotic

d)

living

51.

Is a deer an abiotic or biotic factor?

a)

abiotic

b)

biotic

52.

Is sunlight an abiotic or biotic factor?

a)

abiotic

b)

biotic

53.

A group of the same species of organisms living in the same area.

a)

Community

b)

Organism

c)

Species

d)

Population

54.

A study of all living things and their interactions with each other and the environment.

a)

Evolution

b)

Ecosystem

c)

Ecology

d)

Biodiversity

55.

A community of organisms and their abiotic surroundings.

a)

Ecosystem

b)

Community

c)

Biosphere

d)

Population

56.

All populations of organisms that live and interact in the same habitat.

a)

Population

b)

Ecosystem

c)

Species

d)

Community

57.

The parts of earth where both abiotic (non-living) and biotic (living) systems exist.

a)

Biosphere

b)

Population

c)

Community

d)

Ecology

58.
__________ is an organism that only eats plants for energy.
a)
Carnivore
b)
Herbivore
c)
Omnivore
d)
Terivore
59.

A relationship between two organisms in which one organism benefits and the other is unharmed...

a)

Mutualism

b)

Competition

c)

Parasitsm

d)

Commensalism

60.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
61.

A relationship between two organisms in which both organisms benefit.

a)

Mutualism

b)

Competition

c)

Parasitsm

d)

Commensalism

62.

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. What kind of relationship is this?

a)

Mutualism

b)

Parasitism

c)

Commensalism

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