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WorksheetsPart 2: Cycles of Matter and Energy Transfer in Ecosystems
Total questions: 12
Worksheet time: 11mins
When an organism suffers (population decreases) in an ecosystem, which organism suffers also?
The organism that the original organism eats.
The organism that used the suffering organism as its food source
No other organisms suffer
all of these
When an organism suffers (population decreases) in an ecosystem, which organism benefits (population increases) from this event?
The organism that the original organism eats.
The organism that used the suffering organism as its food source
No other organisms suffer
all of these
What do primary consumers eat?
producers
plants
herbivores
carnivores
What do secondary consumers eat?
herbivores
primary consumers
carnivores
all of these
As you go up the trophic levels, what happens to the amount of energy available?
It decreases by 90%
It is released into the atmosphere in the form of heat.
It increases by 90%
It disappears
What is the difference between phytoplankton and zooplankton?
Phytoplankton are producers and zooplankton are consumers
Phytoplankton can do photosynthesis while zooplankton eat phytoplankton
Phytoplankton are autotrophs and zooplankton are heterotrophs
Phytoplankton are consumed by the primary consumer zooplankton.
Tertiary and quaternary consumers are at the top of the food chain. They are _____________.
producers
carnivores/omnivores
herbivores
all of these
Energy from the sun enters our biosphere through our _____________________.
consumers
producers
carnivores
omnivores
primary consumers
True or False: All primary consumers are herbivores and eat plants, algae, or some bacteria (autotrophs)
True
False
The prefix "zoo" means _______________.
animal
consumer
heterotroph
all of these
The prefix "phyto" means
light
large
green
all of these
If the population of an organism increases, whatever the population of anything that eats it ________________-
decreases
stays the same
increases
dies out
