WorksheetsBiosphere Quiz!
Total questions: 41
Worksheet time: 25mins
is the part of Earth where most life exists
Biosphere
Atmosphere
Geosphere
Hydrosphere
This group of wolves best represents a _
species
scientific method
population
biome
All of the saltwater, fresh water, ice, and water vapor make up the _
biosphere
geosphere
hydrosphere
atmosphere
The _ is all of the gasses that surround the earth.
biosphere
geosphere
hydrosphere
atmosphere
Check all of the following that are abiotic.
rock
mushroom
water
sun
algae
All of the biotic and abiotic factors in a given area make up _.
an ecosystem
life
a habitat
a cool video to watch in class
The place where freshwater and saltwater mix is called _.
a danger zone
an estuary
a tide pool
the photic zone
According to the graph, what has happened to the human population over time?
Human population has stayed constant
Human population has decreased
Human population has increased slowly
Human population has increased exponentially
Each of the following is an abiotic factor in the environment EXCEPT
temperature in July
soil richness
amount of sunlight
amount of tree canopy that shades the forest floor
A nutrient whose supply limits productivity
nitrogen fixation
aibiotic factor
biotic factor
limiting nutrient
A bird stalks, kills, and then eats an insect. Based on its behavior, which ecological terms describe the bird?
Herbivore, Decomposer
Producer, Heterotroph
Carnivore, Consumer
Autotroph, Herbivore
The branch of biology dealing with interactions among organisms and between organisms and their environment is called
ecology
modeling
recycling
economy
An organism that uses energy to produce its own food supply from inorganic compounds is called a(an)
heterotroph
consumer
autotroph
detritivore
Which of the following organisms does NOT require sunlight to live?
chemosynthetic bacteria
algae
trees
photosynthetic bacteria
Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism's life processes, and the rest is
used in reproduction.
stored as body tissue.
stored as fat.
lost to the environment as heat
The movements of energy and nutrients through living
systems are different because
energy flows in one direction and nutrients recycle.
energy is limited in the biosphere and nutrients are always available.
nutrients flow in one direction and energy recycles.
energy forms chemical compounds and nutrients are lost as heat.
What role do decomposers play in biogeochemical cycles?
fossilize dead animals
break down dead organisms and return their nutrients to the nutrient cycles
increase biomass of a trophic level
combine with consumers to create new limiting nutrients
The climate zone closest to the equator
polar
tropical
temperate
torrid
What is a highly organized, structured environment in which all parts live in a delicate balance.
Population
Biosphere
Ecosystem
Community
The number and VARIETY of organisms in a given area is called its ______________.
Biosphere
Population
Community
Biodiversity
What is the leading cause of species extinction?
overpopulation
disease
competition for resources
habitat destruction
Which trophic level signifies the top of the food chain?
producer
secondary consumer
primary consumer
tertiary or higher level consumer
How does a keystone species (like wolves) influence its ecosystem?
they control population sizes of other organisms
they helps increase biodiversity in the ecosystem
they fill a specific niche that no other organism could occupy
all of the options are correct
Analyze the food web in the image. If all of the grasshoppers were to suddenly die off from a disease, what would be the outcome?
Grass populations would increase
Birds populations would decrease
Grain populations would increase
All of the options are possible outcomes
What does the arrow signify in a food chain?
Transfer of energy
What eats what
How many organisms are present
How much food an organism needs
Which of the following is an example of a threat to the biodiversity of an ecosystem?
Habitat loss and fragmentation
Competition from invasive species
Global climate change
Human population growth and consumption
All of these are examples of threats to an ecosystems biodiversity
Why is biodiversity important?
Everything in an ecosystem depends on other organisms
It makes the ecosystem prettier
Biodiversity isn't all that important
Biodiversity helps an animal hide from predators
What is the ultimate source of energy for all ecosystems?
Producers
Consumers
Apex predators
The sun
The American Bison in this picture is an example of a ____ . They are a group of organisms that breed and produce fertile offspring.
population
species
community
ecosystem
The American bison live in a group. They are the same species and live in the same area in Wyoming. This description is of which level of organization?
ecology
species
community
population
The temperature is 80 Degrees partially cloudy. What is this description of the photo referring to?
biotic factors
abiotic factors
species of life
the community
An organism that produces its own food supply from inorganic compounds is called a(an)
heterotroph.
consumer
detritivore.
autotroph.
What is the term for each step in the transfer of energy and matter within a biological community?
energy path
food web
trophic level
food pyramid
