WorksheetsBiology Chapter 3 Review
Total questions: 36
Worksheet time: 18mins
Name
Class
Date
1.
Which of the following is not an abiotic factor?
a)
Sunlight
b)
bacteria
c)
pH
d)
water
2.
Choose the correct sequence for energy flow within an ecosystem
a)
herbivores --> producers --> carnivores --> scavengers
b)
producers --> herbivores --> carnivores --> scavengers
c)
producers --> carnivores --> herbivores --> scavengers
d)
carnivores --> scavengers --> herbivores --> producers
3.
Which group of organisms performs photosynthesis?
a)
Autotrophs
b)
Scavengers
c)
Heterotrophs
d)
consumers
4.
The sun is the ultimate source of energy for terrestrial ecosystems. Approximately how much energy is available to other trophic levels?
a)
1%
b)
10%
c)
25%
d)
59%
5.
Which of the organisms would be the top predator?
a)
zebra
b)
hyena
c)
lion
d)
fungi
6.
What type of organism would you expect to find on the lowest level of the pyramid above?
a)
gazelle
b)
lion
c)
vulture
d)
grasses
7.
Which of the following is considered to be the most important element in living organisms?
a)
carbon
b)
hydrogen
c)
oxygen
d)
phosphorus
8.
What impact does deforestation have on the carbon cycle?
a)
Increase in amount of CO2 in the atmosphere
b)
decrease in amount of CO2 in the atmosphere
c)
Increase in amount of photosynthesis
d)
Increase in the amount of cellular respiration performed by autotrophs
9.
Which element is the most abundant in the atmosphere?
a)
oxygen
b)
nitrogen
c)
phosphorus
d)
sulfur
10.
What is the major source of phosphorus on land?
a)
Deposition from atmospheric phosporus
b)
compounds that are formed by autotrophs during photosynthesis
c)
compounds released from the weathering of rocks
d)
compounds formed from bacterial conversion
11.
What happens during nitrogen fixation?
a)
Bacteria in the soil convert nitrate into nitrogen gas and nitrous oxide.
b)
Nitrogen wastes are into ammonium.Organisms convert nitrogen into carbon dioxide and energy,
c)
Organisms convert nitrogen into carbon dioxide and energy,
d)
Atmospheric nitrogen diffuses into the soil and is converted into ammonia.
12.
The level of ecology that contains the combined portions of the planet in which all life exists, including land, water, and air or atmosphere.
a)
biosphere.
b)
ecosystem.
c)
community.
d)
biome.
13.
The level of ecology that contains a group of organisms so similar to one another that they can breed and produce fertile offspring.
a)
species.
b)
individual.
c)
population.
d)
community.
14.
A group of individuals belonging to a single species that live together in a defined area is termed a(an)
a)
population.
b)
ecosystem.
c)
community.
d)
biome.
15.
How do scientists use modeling to study ecological changes?
a)
Scientists use models to gain insight into ecological changes that are too complex or too long-range to study directly.
b)
Scientists use models to gain insight into scientific study of human populations.
c)
Scientists use models to gain insight into the composition, structure, properties and change of matter.
d)
Scientists use models to gain insight into the processes that produced the diversity of life on Earth starting from a single origin of life.
16.
What is the definition of ecology?
a)
The scientific study of interactions among organisms and between organisms and their environment.
b)
The scientific study of human populations.
c)
The scientific study of composition, structure, properties and change of matter.
d)
The scientific study of processes that produced the diversity of life on Earth starting from a single origin of life.
17.
Groups of different species that live together in a defined area make up a(an)
a)
population.
b)
community.
c)
ecosystem.
d)
biosphere.
18.
All of life on Earth exists in a region known as
a)
an ecosystem.
b)
a biome.
c)
the biosphere.
d)
ecology.
19.
The level of ecology that focuses on a group of ecosystems that have the same climate and similar dominant communities.
a)
biosphere.
b)
biome.
c)
ecosystem.
d)
community.
20.
Which is NOT one of the three basic methods of ecological research?
a)
Observation.
b)
Experimentation.
c)
Modeling.
d)
Extensionism.
21.
An organism that can make its own food is called?
a)
Consumer
b)
Producer
c)
Decomposer
d)
Herbivore
22.
A consumer gets energy by doing what?
a)
Making it themselves.
b)
Breaking down biotic wastes and dead organisms and returning raw materials to the ecosystem.
c)
Soaking it up from the ground.
d)
Feeding on other organisms.
23.
A food chain is?
a)
Overlapping food chains in an ecosystem.
b)
The amount of energy that moves from one feeding level to another in a food web.
c)
A series of events in which one organism eats another and obtains energy.
d)
biotic and abiotic factors in an area.
24.
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
25.
A food web consists of?
a)
Many overlapping food chains in an ecosystem.
b)
A series of events in which one organism eats another and obtains energy.
c)
Amount of energy that moves from one feeding level to another.
d)
Many types of insects that are stuck.
26.
This pyramid shows the relative number of individual organisms at each trophic level.
a)
Energy Pyramid
b)
Biomass Pyramid
c)
Pyramid of Numbers
27.
This pyramid shows the amount of living organic matter at each trophic level.
a)
Energy Pyramid
b)
Biomass Pyramid
c)
Pyramid of Numbers
28.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
29.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
30.
What is one way that carbon enters the atmosphere?
a)
Sunlight
b)
Factory emissions
c)
Ocean uptake
d)
Rain
31.
How does carbon dioxide leave the atmosphere?
a)
Through transpiration
b)
Through photosynthesis
c)
Through factory emission
d)
Sunlight
32.
Where do animals get nitrogen from?
a)
soil
b)
air
c)
water
d)
plants
33.
How do animals obtain carbon?
a)
decomposing
b)
combustion
c)
eating plants
d)
breathing it in
34.
Matter on Earth is limited, so it must be used ____________________________.
a)
only once
b)
over and over again
c)
by only animals
d)
at night only
35.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
36.
How many trophic levels?
a)
2
b)
3
c)
4
d)
5
100 %
