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WorksheetsChapter 3- The Biosphere
Total questions: 59
Worksheet time: 40mins
Name
Class
Date
1.
The biosphere consists of
a)
all life on Earth
b)
all parts of the Earth in which life exists
c)
includes water, land, and atmosphere
d)
includes any life in space
2.
A _______ is a group of similar organisms that can breed and produce fertile offspring
a)
species
b)
population
c)
community
d)
ecosystem
3.
A _____ is a group of individuals that belong to the same species and live in the same area
a)
species
b)
population
c)
community
d)
ecosystem
4.
An assemblage of different populations that live together in a defined area is called a
a)
community
b)
population
c)
species
d)
ecosystem
5.
Factors that have biological influences on organisms are called
a)
biotic factors
b)
abiotic factors
6.
Physical components of an ecosystem are called ______ factors. It includes soil, humidity, temperature, etc.
a)
biotic factors
b)
abiotic factors
7.
Decomposing pine needles make the soil acidic. True or False
a)
True
b)
False
8.
Biotic and abiotic factors shape an ecosystem. True or False
a)
True
b)
False
9.
Primary producers are also known as
a)
autotrophs
b)
heterotrophs
c)
chemotrophs
d)
mixotrophs
10.
Primary producers can be either
a)
autotrophs
b)
plants
c)
chemotrophs
d)
all of these
11.
____________ captures light energy and uses it to power chemical reactions- CO2 + H20 gives C6H12O6 and oxygen
a)
photosynthesis
b)
chemosynthesis
c)
heterotrophic organisms
d)
Humans
12.
The simplest grouping of more than one kind of organism in the biosphere is a(n)
a)
population
b)
community
c)
species
d)
ecosystem
13.
The trophic levels in the picture illustrate
a)
the relative amount of energy
b)
the amount of living organic matter
c)
the relative number of individual organisms
d)
that producers outnumber firsl-level consumers
14.
carbon cycles through the biosphere in all of the following EXCEPT
a)
photosynthesis
b)
transpiration
c)
respiration
d)
decomposistion
15.
the movements of energy and nutrients through living systems are different because
a)
energy flows in one direction and nutrients recycle
b)
energy is limited in the biosphere and nutrients are always available
c)
nutrients flow in one direction and energy recycles
d)
energy forms chemical compounds and nutrients are lost as heat
16.
Which is most likely to be a limiting nutrient in a freshwater pond
a)
phosphorus
b)
nitrogen
c)
carbon
d)
potassium
17.
what is the combined portions of Earth called in which all living things exist
a)
biome
b)
community
c)
ecosystem
d)
biosphere
18.
which of the following is NOT a basic method used by ecologist to study the living world
a)
experimenting
b)
classifying
c)
modeling
d)
observing
19.
what is an organism that feeds only on plants called
a)
carnivore
b)
herbivore
c)
omnivore
d)
detritivore
20.
all the interconnected feeding relationships in an ecosystem make up a food _______
a)
interaction
b)
chain
c)
network
d)
web
21.
which type of pyramid shows the amount of living tissue at each trophic level in an ecosystem
a)
a numbers pyramid
b)
an energy pyramid
c)
a biomass pyramid
d)
a food pyramid
22.
the repeated movement of water between Earths surface and the atomosphere
a)
the water cycle
b)
the condensation cycle
c)
precipitation
d)
evaporation
23.
of the organisms represtented, which would have the smallest total biomass?
a)
algae
b)
small fishes
c)
shark
d)
squid
24.
scientist classify the nitrogen, carbon, and water cycles as what type of cycle?
a)
the life cyle
b)
biogeochemical cycle
c)
thermodynamic cycles
d)
business cycle
25.
plant eating animals like cows are called what
a)
herbivores
b)
omnivores
c)
producers
d)
carnivores
26.
What are the Abiotic factors in this image?
a)
water, sunlight, dirt, air
b)
birds and plants
c)
birds, water, dirt
d)
plants, water
27.
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.
28.
Only about 10 percent of the energy in a trophic level is available to organisms at the next trophic level.
a)
True
b)
False
29.
Organisms that break down organic matter and return it to the environment are called _____.
a)
decomposer
b)
elephant
c)
puppies
d)
frogs
30.
Organisms that break down organic matter and return it to the environment are called _____.
a)
decomposer
b)
elephant
c)
puppies
d)
frogs
31.
What animals eat both producers and consumers?
a)
herbivores
b)
omnivores
c)
chemotrophs
d)
autotrophs
32.
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
33.
Which of the following is not an abiotic factor?
a)
Sunlight
b)
bacteria
c)
pH
d)
water
34.
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
35.
Which of the organisms would be the top predator?
a)
zebra
b)
hyena
c)
lion
d)
fungi
36.
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
37.
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
38.
Which element is the most abundant in the atmosphere?
a)
oxygen
b)
nitrogen
c)
phosphorus
d)
sulfur
39.
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.
40.
An organism that can make its own food is called?
a)
Consumer
b)
Producer
c)
Decomposer
d)
Herbivore
41.
Which is NOT one of the three basic methods of ecological research?
a)
Observation.
b)
Experimentation.
c)
Modeling.
d)
Extensionism.
42.
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.
43.
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
44.
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.
45.
This pyramid shows the relative number of individual organisms at each trophic level.
a)
Energy Pyramid
b)
Biomass Pyramid
c)
Pyramid of Numbers
46.
This pyramid shows the amount of living organic matter at each trophic level.
a)
Energy Pyramid
b)
Biomass Pyramid
c)
Pyramid of Numbers
47.
What is one way that carbon enters the atmosphere?
a)
Sunlight
b)
Factory emissions
c)
Ocean uptake
d)
Rain
48.
How does carbon dioxide leave the atmosphere?
a)
Through transpiration
b)
Through photosynthesis
c)
Through factory emission
d)
Sunlight
49.
Where do animals get nitrogen from?
a)
soil
b)
air
c)
water
d)
plants
50.
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
51.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
52.
Clouds form because water _________ in the atmosphere
a)
Evaporates
b)
Condenses
c)
Transpires
d)
Runs Off
53.
In the biome, matter is recycled
a)
True
b)
False
54.
Animals that consume the carcasses of prey that have been killed by other predators
a)
Scavengers
b)
Omnivores
c)
Heterotrophs
d)
Autotrophs
55.
All are abiotic factors except
a)
Leaves
b)
Rainfall
c)
Temperature
d)
Sunlight
56.
What type of organism returns the nutrients of decaying organisms back into the biosphere
a)
Autotrophs
b)
Primary producer
c)
Decomposers
d)
Scavengers
57.
Water that moves across the land to meet up with large bodies of water
a)
Condensation
b)
Run Off
c)
Evaporation
d)
Precipitation
58.
8km above the Earth's surface and 11km below the ocean's surface
a)
Biome
b)
Ecosystem
c)
Biosphere
d)
Community
59.
Rain, sleet, hail, and snow are all considered
a)
Condensation
b)
Precipitation
c)
Evaporation
d)
Transpiration
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