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WorksheetsUnit 7- Food Webs and Photosynthesis
Total questions: 33
Worksheet time: 17mins
Name the primary consumer
Grass -> Grasshopper -> Mouse -> Owl
What would happen if the secondary consumer was removed?
The grasshopper population would increase
The grasshopper population would decrease
The owl population would increase
*Energy moves from one organism to another when it is eaten.
*Each step in this transfer of energy is known as a __________ level
cell
trophic
biome
sun
Name the producer from the food chain above
Could you make this food chain from the food web you see? Plant --> herbivorous insect --> spiders -->foxes
Yes
No
How does an omnivore get its energy?
eats plants and animals
eats animals only
eats plants only
breaks down dead organisms and absorbs nutrients
How does a herbivore get its energy?
eats plants and animals
eats animals only
eats plants only
breaks down dead organisms and absorbs nutrients
How does a carnivore get its energy?
eats plants and animals
eats only plants
eats only animals
breaks down dead organisms and absorbs nutrients
How does a decomposer get its energy?
eats plants and animals
eats only plants
eats only animals
breaks down dead organisms and absorbs nutrients
Which of these statements is TRUE?
a scavenger finds organisms that are already dead and eats them
a decomposer finds organisms that are already dead and eats them
there is no difference between a scavenger and a decomposer
What's another word for autotroph?
producer
animal
decomposer
scavenger
Which organisms make their own food?
heterotroph
autotroph
scavenger
decomposer
What is CO2?
carbon dioxide
water
oxygen
glucose
What is H2O?
water
carbon dioxide
glucose
oxygen
What is C6H12O6?
water
carbon dioxide
glucose
oxygen
What is another word for producer?
plant
animal
decomposer
herbivore
How many steps is the LONGEST food chain you can make from this food web?
3
4
5
6
What needs to be changed about this food web?
the arrows need to be flipped the other direction
there is nothing wrong with this food web
conncet the moose to the beaver
remove the squirrel
The arrows are missing from this food web. Which way should they point?
mouse --> wolf
wolf --> mouse
How many organisms long is the SHORTEST food chain you can make from this food web? (Start with the plant)
3
4
5
6
What is the difference between a food chain and a food web?
Food chains show energy flow in an ecosystem, and food webs do not
Food chains are simple, while food webs are complex
Food webs contain both plants and animals, but food chains contain only plants
Food webs separate organisms by trophic level, but food chains do not
If a plant doesn't get any sunlight, it can't do photosynthesis
True
False
