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Ecosystems &Biomes

Total questions: 42

Worksheet time: 1hrs 4mins

Name
Class
Date
1.

High biodiversity removes the predators and parasites in the ecosystem and makes it safer.

a)

True

b)

False

2.

High biodiversity in an ecosystem eliminates all diseases that could harm plants or animals.

a)

True

b)

False

3.

A stable ecosystem typically has high biodiversity.

a)

True

b)

False

4.

High biodiversity is a sign of a healthy ecosystem.

a)

True

b)

False

5.

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

6.
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
7.

When a population has reached carrying capacity

a)

Births & Immigration are equal to Death & emigration

b)

Births & Immigration are less than Death & emigration

c)

Births & Immigration are greater than Death & emigration

d)

Births are exponential

8.

What does the term carrying capacity describe?

a)

The maximum number of birth rates for a population.

b)

The ability of a population to accept new immigrants.

c)

The ratio of birth rates to death rates in a population.

d)

The population size that the environment can sustain.

9.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
10.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
11.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
12.
An animal that eats other animals is a....
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
13.
Bacteria, fungi, and earthworms are examples of: 
a)
scavengers
b)
predators
c)
prey
d)
decomposers
14.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
15.
__________ is an organism that eats BOTH plants and animals for energy.
a)
Omnivore
b)
Darnivore
c)
Carnivore
d)
Herbiovre
16.
Which is a producer?
a)
deer
b)
tall grass
c)
lion
d)
worm
17.

Greater species diversity ensures natural ________________ for all life forms.

a)

selection

b)

sustainability

c)

help

d)

health

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.

Image "B" shows more biodiversity than image "A". Why?

a)

Because "B" shows more different species than image "A"

b)

Because image "B" has less different species than "A"

c)

"A" has a greater number of same species plants so this statement is wrong.

d)

Both images show the same biodiversity

20.

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.

21.
Why is biodiversity so important?
a)
Because all species depend on each other to survive, so if one becomes extinct another species that relies on it could go extinct as well
b)
Because it’s better to have only one variation of each species.
c)
Because it better to only have a few species on Earth.
d)
Honestly, I have no idea what biodiversity is!
22.
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.
23.
What type of organism makes its own food?
a)
consumer
b)
carnivore
c)
producer
d)
animal
24.
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
25.

Which of the following forms of biodiversity describes all of the different types of biotic factors in an ecosystem?

a)

Species

b)

Habitat

c)

Genetic

d)

None of the Above

26.

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

a)

Rain forest

b)

Temperate Forest

c)

They have a similar biodiversity

27.

In general, as you move from the equator to the poles, what happens to biodiversity>

a)

Increases

b)

Decreases

c)

Remains the same

28.

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

a)

alive

b)

biotic

c)

abiotic

d)

living

29.

What is an example of a biotic factor?

a)

skunk

b)

rocks

c)

soil

d)

water

30.

All the green plants that provide the energy for consumers.

a)

consumers

b)

producers

c)

decomposers

d)

herbivores

31.

Plants and animals in the tundra must be able to adapt to the extremely ___________ weather

a)

small

b)

cold

c)

perennials

d)

shallow

32.
Dropping leaves in the fall is a characteristic of what type of tree?
a)
deciduous
b)
evergreen
c)
conifer
d)
bonsai
33.

Which biome is represented by the rainfall amounts in letter C?

a)

desert

b)

prairie

c)

deciduous forest

d)

tropical rain forest

34.

Biomes are mainly determined by _____ and ____.

a)

temperature

b)

weather

c)

precipitation

d)

soil

e)

rocks

35.

What do you notice about this climate graph?

a)

temperature is warm year round

b)

temperature is cold year round

c)

dry summers

d)

most rain in the winter

36.

What are some characteristics of deserts?

a)

lots of trees

b)

high average rainfall

c)

low average rainfall

d)

extreme temperature variations

e)

grasslands

37.

What are some characteristics of rainforests?

a)

lots of trees

b)

high year round temperature

c)

high amount of rainfall

d)

grasslands

e)

low year round temperature

38.

What are some characteristics of tundra?

a)

permafrost

b)

very cold, low average temperatures

c)

lots of trees

d)

small amount of plants

e)

high amount of rainfall

39.

What are some characteristics of a taiga/boreal forest?

a)

coniferous trees

b)

very cold

c)

very hot

40.

What are some characteristics of a temperate deciduous forest?

a)

leaves change color in the fall

b)

lots of trees

c)

hot year round

d)

low amount of rainfall

41.

What are some characteristics of a temperate grassland/prairie?

a)

lots of trees

b)

grassland

c)

flat

d)

high temperatures year round

42.

What are some characteristics of a tropical grassland/savanna?

a)

warm temperatures

b)

seasonal rainfall

c)

lots of trees

d)

grassland

e)

low average temperature

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