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WorksheetsChapter 3 - The Biosphere
Total questions: 56
Worksheet time: 28mins
Name
Class
Date
1.
The total amount of living tissue within a given trophic level is called the
a)
organic mass.
b)
trophic mass.
c)
energy mass.
d)
biomass.
2.
Only about 10 percent of the energy in a trophic level is available to organisms at the next trophic level.
a)
True
b)
False
3.
Organisms that break down organic matter and return it to the environment are called _____.
a)
decomposer
b)
elephant
c)
puppies
d)
frogs
4.
What animals eat both producers and consumers?
a)
herbivores
b)
omnivores
c)
chemotrophs
d)
autotrophs
5.
How do most primary producers make their own food?
a)
by using light energy to make carbohydrates
b)
by using chemical energy to make carbohydrates
c)
by changing water into carbon dioxide
d)
by breaking down remains to make carbon dioxide
6.
Which of the following is not an abiotic factor?
a)
Sunlight
b)
bacteria
c)
pH
d)
water
7.
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
8.
Which group of organisms performs photosynthesis?
a)
Autotrophs
b)
Scavengers
c)
Heterotrophs
d)
consumers
9.
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%
10.
Which of the organisms would be the top predator?
a)
zebra
b)
hyena
c)
lion
d)
fungi
11.
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
12.
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
13.
Which element is the most abundant in the atmosphere?
a)
oxygen
b)
nitrogen
c)
phosphorus
d)
sulfur
14.
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.
15.
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.
16.
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.
17.
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.
18.
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.
19.
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.
20.
Groups of different species that live together in a defined area make up a(an)
a)
population.
b)
community.
c)
ecosystem.
d)
biosphere.
21.
All of life on Earth exists in a region known as
a)
an ecosystem.
b)
a biome.
c)
the biosphere.
d)
ecology.
22.
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.
23.
Which is NOT one of the three basic methods of ecological research?
a)
Observation.
b)
Experimentation.
c)
Modeling.
d)
Extensionism.
24.
An organism that can make its own food is called?
a)
Consumer
b)
Producer
c)
Decomposer
d)
Herbivore
25.
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.
26.
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.
27.
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
28.
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.
29.
This pyramid shows the relative number of individual organisms at each trophic level.
a)
Energy Pyramid
b)
Biomass Pyramid
c)
Pyramid of Numbers
30.
This pyramid shows the amount of living organic matter at each trophic level.
a)
Energy Pyramid
b)
Biomass Pyramid
c)
Pyramid of Numbers
31.
What is one way that carbon enters the atmosphere?
a)
Sunlight
b)
Factory emissions
c)
Ocean uptake
d)
Rain
32.
How does carbon dioxide leave the atmosphere?
a)
Through transpiration
b)
Through photosynthesis
c)
Through factory emission
d)
Sunlight
33.
Where do animals get nitrogen from?
a)
soil
b)
air
c)
water
d)
plants
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.
A group of different species interacting together
a)
Population
b)
Community
c)
Ecosystem
d)
Biosphere
37.
The lowest level of ecology organization
a)
Population
b)
Community
c)
Organism
d)
Biome
38.
Plants are
a)
Heterotrophs
b)
First Level Consumers
c)
Autotrophs
d)
Decomposers
39.
All of the interconnected feeding relationships in an ecosystems make up
a)
Food chains
b)
Predator Relationships
c)
Symbiotic Relationships
d)
Food webs
40.
A word that means the same thing as consumer
a)
Producer
b)
Autotroph
c)
Heterotroph
d)
Carnivore
41.
Clouds form because water _________ in the atmosphere
a)
Evaporates
b)
Condenses
c)
Transpires
d)
Runs Off
42.
Movement of energy and matter in the biosphere is the same since they both only move in one direction
a)
True
b)
False
43.
In the biome, matter is recycled
a)
True
b)
False
44.
Animals that consume the carcasses of prey that have been killed by other predators
a)
Scavengers
b)
Omnivores
c)
Heterotrophs
d)
Autotrophs
45.
All are abiotic factors except
a)
Leaves
b)
Rainfall
c)
Temperature
d)
Sunlight
46.
The branch of biology dealing with organisms and how they interact with each other
a)
Economy
b)
Modeling
c)
Recycling
d)
Ecology
47.
How do most primary producers get their energy?
a)
Chemosynthesis
b)
Decomposition
c)
Photosynthesis
d)
Predation
48.
What type of organism returns the nutrients of decaying organisms back into the biosphere
a)
Autotrophs
b)
Primary producer
c)
Decomposers
d)
Scavengers
49.
Water that moves across the land to meet up with large bodies of water
a)
Condensation
b)
Run Off
c)
Evaporation
d)
Precipitation
50.
Producers release oxygen gas into the air during photosynthesis
a)
True
b)
False
51.
How much of an organism's energy is available at each trophic level?
a)
5%
b)
10%
c)
1%
d)
.1%
52.
What would happen to the grass population if the grasshoppers were removed from the chain?
a)
Nothing
b)
They would decrease because they lost their food
c)
The would increase because they gained a food source
d)
They would increase because they lost a predator
53.
8km above the Earth's surface and 11km below the ocean's surface
a)
Biome
b)
Ecosystem
c)
Biosphere
d)
Community
54.
The area that contains all living things on Earth
a)
Biome
b)
Biosphere
c)
Ecosystem
d)
Community
55.
Rain, sleet, hail, and snow are all considered
a)
Condensation
b)
Precipitation
c)
Evaporation
d)
Transpiration
56.
Where does energy initially come from in food webs/chains?
a)
Moon
b)
Plants
c)
Sun
d)
Soil
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