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Biodiversity

Total questions: 39

Worksheet time: 33mins

Name
Class
Date
1.

the variety of life in the world or in a particular habitat or ecosystem

a)

biodiversity

b)

demography

c)

carrying capacity

d)

poaching

2.

a species that is not native to a particular region

a)

endemic

b)

exotic

c)

endangered

d)

extinct

3.

species that are native to and found only within a limited area

a)

endemic

b)

exotic

c)

endangered

d)

extinct

4.

a species at risk, but not yet endangered

a)

endangered

b)

exotic

c)

endemic

d)

threatened

5.

Which of the following would be most effective in slowing the loss of biodiversity?

a)

creating large parks/preserves in biodiversity hotspots

b)

requiring every country to maintain a seed bank

6.

In what part of the world are the greatest number of extinctions occurring?

a)

in deserts

b)

in the Arctic

c)

in tropical rain forests

7.

The level of biodiversity that involves a variety of habits and communities is _____ diversity.

a)

ecosystem

b)

population

c)

genetic

d)

species

8.

What level of biodiversity is most commonly equated with the overall concept of biodiversity?

a)

genetic

b)

ecosystem

c)

species

9.

Why is biodiversity important to ecosystems?

a)

It helps populations adapt to ecological changes.

b)

It increases at each level of the food chain.

10.

Where are many critical biodiversity hotspots located?

a)

islands, tropical rain forests, and coastal areas

b)

cities and developed areas of the world

11.

Biodiversity is important to keep an area (biome) healthy. In this example "Food Web A" is sustainable. Why is sustainability important for an ecosystem in "Food Web A".

a)

If one organism is removed the food web can still operate (work) with little or no negative effect.

b)

If an organism is removed the food web will collapse and will affect the environment.

12.

Food Web B is an example of...

a)

Low biodiversity and low sustainability. If the producer dies then all the food web will suffer.

b)

High biodiversity and high sustainability. If an organism is removed the food web will continue with no effect.

13.
What is the difference between biotic and abiotic?
a)
Biotic are non-living things
b)
Abiotic are living organisms
c)
Biotic is life,
Abiotic is non-living
d)
Biotic is non-living, Abiotic is living
14.
Which biome is more biodiverse?
a)
Desert
b)
Sand
c)
Tundra
d)
Rainforest
15.
Which option is abiotic?
a)
Plants
b)
Bacteria
c)
Water
d)
Fungi
16.
Which option is abiotic?
a)
Plants
b)
Rocks
c)
Animals
d)
Fungi
17.
 Which biome is more likely to survive a change in the environment?
a)
High (rich) biodiversity
b)
Low (poor) biodiversity
18.
What does biodiversity mean?
a)
Only one species in an area.
b)
The different amount of species in an area
c)
All abiotic life
d)
Nitrogen fixation
19.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
20.
Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
21.
Mistletoe extracts water and nutrients from the spruce tree to the tree's detriment (harm). 
a)
Mutualsim 
b)
Parasitism 
c)
Commensalism 
22.
The snake is a predator to what prey in this food chain?
a)
frog
b)
grass
c)
grasshopper
d)
hawk
23.
Why is a deer classified as a herbivore?
a)
A deer makes its own food.
b)
A deer eats only plants.
c)
A deer eats only animals.
d)
A deer eats plants and animals.
24.
Why is a racoon classified as an omnivore?
a)
A racoon eats only animals.
b)
A racoon eats only plants.
c)
A racoon makes its own food.
d)
A racoon eats plants and animals.
25.
What type of organism makes its own food?
a)
consumer
b)
carnivore
c)
producer
d)
animal
26.
Which are decomposers?
a)
humans
b)
trees
c)
red wolves
d)
worms
27.
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 
28.
What is the role of decomposers in a food chain?
a)
Use sunlight to make food
b)
Eat other organisms to gain energy
c)
Make the food for the whole food chain
d)
Break down dead organisms and add nutrients to the soil
29.
Which type of consumer eats meat only?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Omnivores
30.
What do the arrows show in a food chain picture?
a)
They always point to the smallest animals.
b)
They point to the animal that tastes the best.
c)
They always point to the producers.
d)
They point in the direction that energy is flowing.
31.
Which organisms are the consumers?
a)
deer and squirrel
b)
flowers and deer
c)
deer and mushrooms
d)
squirrel and mushrooms
32.
Which food chain is in the correct order?
a)
cat, grass, bird, snail
b)
bird, snail, grass, cat
c)
grass, snail, bird, cat
d)
grass, cat, bird, snail
33.

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

34.

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

35.

Which of the following forms of biodiversity describes all of the different livable spaces in an ecosystem?

a)

Species

b)

Habitat

c)

Genetic

d)

None of the Above

36.

Which of the following forms of biodiversity describes the differences between individuals within the same species?

a)

Species

b)

Habitat

c)

Genetic

d)

None of the Above

37.

What has a higher biodiversity: a rain forest or a desert?

a)

Rain forest

b)

Desert

c)

They have a similar biodiversity

38.

What has a higher biodiversity: a temperate forest or a frozen tundra?

a)

Frozen Tundra

b)

Temperate Forest

c)

They have a similar biodiversity

39.

Which example represents a mutualism symbiotic relationship?

a)

alligator and plover bird

b)

flea and dog

c)

remora fish and shark

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