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Worksheets2nd Semester Final Exam
Total questions: 30
Worksheet time: 24mins
Name
Class
Date
1.
Which biome is more biodiverse?
a)
Desert
b)
Sand
c)
Tundra
d)
Rainforest
2.
Which option is abiotic?
a)
Plants
b)
Bacteria
c)
Water
d)
Fungi
3.
Which option is abiotic?
a)
Plants
b)
Rocks
c)
Animals
d)
Fungi
4.
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.
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.
Biodiversity refers to
a)
extinct species
b)
the variety of species on Earth
c)
nonrenewable resources
d)
the rate of species decline
7.
Sustainability refers to
a)
how many species are present in an ecosystem
b)
when a species goes extinct
c)
how long a species lives
d)
the ability to maintain ecological process over long periods of time.
8.
The higher the biodiversity, the more sustainable an ecosystem is.
a)
True
b)
False
9.
A drought has hit this grassland biome. How will this effect the rabbit population?
a)
The rabbits will increase in number.
b)
The rabbit population will stay the same.
c)
The rabbit population will decrease.
d)
The rabbit population will become extinct immediately.
10.
Brown trout consume (eat) more tadpoles when the fly larvae reduce in number (decrease). This proves...
a)
The dependence of organisms and biodiversity in an ecosystem
b)
Diversity increases as organisms decrease
c)
Losing an animal is good for ecosystems
d)
Changes in ecosystems create new organisms
11.
Which of the following would cause biodiversity to DECREASE?
a)
Water
b)
Forest Fires
c)
Sunlight
d)
Producers
12.
When biodiversity increases
a)
Sustainability decreases
b)
Sustainability remains the same
c)
Sustainability also increases
d)
Sustainability becomes greater by 2
13.
Which of the following organisms is described as producing their own energy by using sunlight?
a)
Heterotroph
b)
Consumer
c)
Producer
d)
Omnivore
14.
Which of the following organisms is responsible for break down waste into simple organic matter?
a)
Autotroph
b)
Heterotroph
c)
Detritivore
d)
Decomposer
15.
Interacting food chains found in an ecosystem
a)
food web
b)
food chain
c)
predator
16.
What do the arrows in the food chain show?
a)
The transfer of energy
b)
What animals eat
c)
The order of animal dominance
17.
What role do decomposers have in the ecosystem?
a)
To poison species if they eat them
b)
Fermentation
c)
To return nutrients back into the soil
18.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
19.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
20.
This diagram shows the amount of energy that moves from one feeding level to another in a food web.
a)
Energy Pyramid
b)
Food Web
c)
Ecosystem
d)
Food Chain
21.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
22.
A secondary consumer
a)
eats primary consumers
b)
eats producers
c)
eats plants
23.
After a forest fire, an ecosystem would start regrowth through -
a)
primary succession
b)
secondary succession
c)
climax community
d)
limiting factors
24.
Which catastrophic event will most likely have the effect of returning an ecosystem to primary succession?
a)
A tornado
b)
A volcanic eruption
c)
A flood
d)
A drought
25.
succession that occurs in an area with no soil
a)
ecological succession
b)
primary succession
c)
secondary succession
d)
pioneer speciles
26.
succession that occurs in an area where soil is already present
a)
ecological succession
b)
primary succession
c)
secondary succession
d)
pioneer speciles
27.
starts with bare rock followed by lichen
a)
primary succession
b)
secondary succession
c)
both types of succession
28.
Which catastrophic event will most likely have the effect of returning an ecosystem to primary succession?
a)
A tornado
b)
A volcanic eruption
c)
A flood
d)
A drought
29.
Which of the following describes large areas of ground that fall or flow on slopes due to gravity?
a)
floods
b)
hurricanes
c)
landslides
d)
wildfires
30.
Where are hurricanes most likely to do the most damage?
a)
Near the coast
b)
In the forest
c)
In a desert
d)
On the North Pole
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