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Biodiversity

Total questions: 46

Worksheet time: 32mins

Name
Class
Date
1.
Where does the energy from an ecosystem come from?
a)
Trees
b)
Sun
c)
Plants
d)
Water
2.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff 
3.
When there is higher biodiversity
a)
more organisms are likely to die because they can't adapt to environmental changes.
b)
there is less diversity.
c)
there is more diversity and higher sustainability of life.
d)
there is more diversity and lower sustainability of life
4.
A small marine area has phytoplankton as its only producer.  Should the marine biologist be concerned about this ecosystem?
a)
No the fish do not need the phytoplanton. Since there are so many fish, there is high biodiversity.
b)
Yes, this ecosystem has low biodiversity.  Without a producer the herbivores will die out leaving no food.
c)
Yes, this system has high biodiversity; however the fish can adapt and get food from another source.
d)
Yes, the fish will overate to get all of the phytoplankton that is left, then they will die.
5.
How do biodiversity and sustainability work together?
a)
The lower the biodiversity the greater the sustainability.
b)
The higher the biodiversity, the less sustainable the ecosystem
c)
The higher the biodiversity, the greater the sustainability.
d)
Biodiversity has nothing to do with sustainability.
6.
High biodiversity is 
a)
having a lot of the same organism.
b)
having a few of the same organism.
c)
having a lot of variety of different organisms.
d)
only having one of each organism. 
7.
This picture is a great example of ____________ biodiversity.
a)
high
b)
moderate
c)
low
d)
hhhmmmm there is no way to know without counting.
8.
This picture is a great example of ____________ biodiversity.
a)
high
b)
moderate
c)
low
d)
hhhmmmm there is no way to know without counting.
9.

Biodiversity, aka biological diversity, usually refers to

a)

the same species in a general location

b)

the number of different species in a given area

c)

the number of animal species in a given area

d)

the number of plant species in a given area

10.

Species that are clearly critical to the functioning of an ecosystem are known as

a)

biodiversity

b)

keystone species

c)

main species

d)

native species

11.

A species that is likely to become extinct if protective measures are not taken immediately is known as

a)

threatened species

b)

endemic species

c)

keystone species

d)

endangered species

12.

a species that is not native to a particular region and has no natural predators and little competition

a)

consumer species

b)

producer species

c)

invasive species

d)

adapted species

13.

A population is

a)

a group of similar species in different areas

b)

a group of the same species in the same geographic area.

c)

a group of several species in the same geographic area

d)

a group of several species along with their abiotic factors in a small area.

14.
Which of these sources is used for generating electricity that is NOT renewable?
a)
coal
b)
the Sun
c)
wind
d)
water
15.
Which of the following is true about coal?
a)
It is renewable because it is deep inside Earth.
b)
It is renewable because it can easily be replaced as it is used.
c)
It is nonrenewable because it cannot be replaced as fast as people use it.
d)
It is nonrenewable because it fuels many power plants that make electricity.
16.
Which of the following resources is collected by the panels on the roof of his home?
a)
air
b)
water
c)
wind
d)
sunlight
17.
 Which of the following are renewable sources of energy?
a)
coal and natural gas
b)
oil and electricity
c)
sunlight and petroleum
d)
wind and water
18.
Which of the following is NOT a way that people can be harmful to the environment?
a)
burning coal for energy
b)
clearing land for homes
c)
making products from wood
d)
planting trees in a forest
19.
Which of the following is a major cause of air pollution?
a)
burning fossil fuels
b)
dumping waste in landfills
c)
using wind and solar energy
d)
releasing waste into streams
20.

Resources that cannot be replaced

a)

Conservation

b)

Renewable Resource

c)

Non-Renewable Resource

d)

Natural Resource

21.

The surroundings in which people, animals, or plants live

a)

conservation

b)

trees

c)

renewable resource

d)

environment

22.

Resources that can be replaced

a)

Renewable Resource

b)

Non-Renewable Resource

c)

Natural Resource

d)

Conservation

23.

Oil is a _______________.

a)

Renewable Resource

b)

Non-Renewable Resource

24.
Pollution _________________________.
a)
is harmful materials put into the environment
b)
found in air, water, and land
c)
effects plants, animals, and people
d)
All of the above
25.
Smog is an example of ______________ pollution.
a)
land
b)
water
c)
air
d)
noise
26.
How does air pollution effect people?
a)
It can cause people to have difficulty breathing.
b)
It can make sick people even sicker. 
c)
Sometimes, air pollution can cause cancer.
d)
All of the above
27.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
28.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
29.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
30.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
31.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
32.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide and other greenhouse gases in the atmosphere
d)
higher levels of oxygen in the atmosphere
33.
What is a mass extinction?
a)
When all the species in a particular area on earth suddenly go extinct
b)
When multiple species from all over the earth suddenly go extinct 
c)
When one species goes extinct due to habitat changes
d)
When all life on earth is wiped out 
34.
There have been _____ mass extinction events in Earth's history.
a)
3
b)
4
c)
5
d)
2
35.

According to most scientists, what is the ultimate cause of most mass extinctions?

a)

overhunting

b)

evolution of new species to replace old ones

c)

major change in environment or climate

d)

asteroid impact

36.
What word do we use to describe a species which has no members still living?
a)
endangered
b)
extinct
37.

True or False: Human beings are wiping out species much faster than nature creates them, causing what scientists call a "6th extinction"

a)

true

b)

false

38.
Suppose a pond dries up. What will most likely happen to the fish that lived there?
a)
They will learn to live on land.
b)
They will move to another pond.
c)
They will learn to breathe air.
d)
They will not survive.
39.
Humans are causing extiction in which ways?
a)
By over hunting animals for food or products.
b)
By destroying the natural habitat of species.
c)
By polluting the environments of the world.
d)
All of the above.
40.

Which answer choice below is human behavior that may help prevent a sixth mass extinction?

a)

habitat loss: clearing a 400 acre forest to build a new shopping mall.

b)

pollution from factories and automobiles.

c)

burning fossil fuels: using natural resources, like coal, to heat homes or power factories.

d)

solar energy; using the sun as a source of energy to heat our buildings and provide electric power.

41.

Which habitat has the highest biodiversity?

a)

Savanna

b)

Rainforest

c)

Tundra

d)

Desert

42.

What kind of natural disaster can happen in the hilly areas where the trees are cut down?

a)

Too much raining

b)

Landslide

c)

Tsunami

d)

Earthquake

43.

Where does most air pollution come from?

a)

Human activities

b)

Wildfires

c)

Volcanic eruptions

d)

Allergens

44.

The area where a plant or animal lives

a)

environment

b)

location

c)

habitat

d)

home

45.

What can happen if fertilizer get into streams or lakes?

a)

Plants such as algae can grow out of control

b)

Chemicals such a DDTs & PCBs can get into the fish

c)

The water can get too warm.This is a wrong answer

46.

What is a human activity that can cause habitat destruction?

a)

Planting trees

b)

Buying clothes

c)

Deforestation

d)

Pick up fruits and vegetables

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