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WorksheetsGrade 9 Ecology
Total questions: 29
Worksheet time: 15mins
The parts of Earth where life exists
lithosphere
biosphere
hydrosphere
atmosphere
A land-based ecosystem
abiotic
aquatic ecosystem
ecosystem
terrestrial ecosystem
A system that is made up of all the interacting biotic and abiotic parts of a certain place.
aquatic ecosystem
ecologist
ecosystem
abiotic
This offers protection from UV radiation, helps hold in heat, and contains the oxygen and carbon dioxide required for animal and plant life.
biosphere
lithosphere
hydrosphere
atmosphere
A series of chemical reactions, that occur in organisms near volcanic vents in the ocean floor, that produce energy using chemical compounds instead of sunlight.
chemosynthesis
respiration
photosynthesis
cyanobacteria
How much energy is converted in a food chain after the organism it uses some of that energy for respiration.
gross primary productivity
productivity
net primary productivity
biomass
The Earth's atmosphere is 78%
nitrogen
oxygen
carbon dioxide
argon
During photosynthesis, plants use the Sun's energy to pull what element away from carbon dioxide and water?
hydrogen
carbon
oxygen
Chloroplasts
evolved from cyanobacteria
reflect green light
are the site of photosynthesis
all of these are correct
Energy-rich food compound that stores chemical energy.
glucose
cellular respiration
giraffe
mitochondria
Any living thing that gets the energy it needs by making its own food.
photosynthesis
cellular respiration
producer
consumer
A model that describes how the energy that is stored in food is transferred from one living thing to another.
glucose
producer
food chain
cellular respiration
A series of chemical changes that let living things release the energy stored in sugars to fuel all life functions.
consumer
cellular respiration
photosynthesis
glucose
A series of chemical changes that let green plants capture the Sun's light energy and transform it into chemical energy.
cellular respiration
glucose
photosynthesis
food web
Any substance that a living thing needs to sustain life.
algal bloom
nutrient
decomposer
fertilizer
The pattern of continual use and reuse of a nutrient.
nutrient cycle
drought
global warming
decomposer
Plants do cellular respiration.
True
False
An organism that obtains energy by consuming dead plant and animal matter.
drought
decomposer
global warming
algal bloom
A harmful interaction between two or more organisms that can occur when organisms compete for the same resource.
carrying capacity
predator
host
competition
Any organism that exists by hunting and eating other organisms.
predator
limiting factor
competition
parasite
Approximately how much energy moves from one trophic level to the next?
1%
10%
50%
90%
A living plant or animal from which a parasite obtains nutrition.
parasite
host
predator
prey
An organism that lives in or on, and takes its nourishment from, another organism.
parasite
host
predator
prey
This is the maximum population of a species that an ecosystem can sustain.
logistical growth
density-independent limiting factor
density-dependent limiting factor
carrying capacity
Any species that has been introduced into and lives in an ecosystem where it is not found naturally.
species diversity
introduced species
watershed
pollutants
Any area of land that drains into a body of water.
species diversity
pollutants
watershed
diversity
The number and variety of different species of living things in an area.
biodiversity
diversity
pollutants
introduced species
Without public health restrictions, what kind of growth would Covid-19 demonstrate?
linear
logistical
exponential
we don't know
Social distancing is an example of
carrying capacity
density-dependent limiting factor
density-independent limiting factor
logistics
