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WorksheetsLesson 8: Biodiversity QUIZ
Total questions: 8
Worksheet time: 8mins
Biodiversity is the ____________ and variability of __________ on earth
variety
life
assortment
difference
High biodiversity is a sign of a healthy ecosystem.
True
False
high
moderate
low
there is no way to know without counting.
Based on the graph shown, how can you tell sea otters are a keystone species (a species other species largely depend on in an ecosystem)?
as the sea otter population decreases, biodiversity increases
as sea otter population decreases, biodiversity decreases
changes in the sea otter population have little effect on biodiversity
the sea otter population dereases due to the presence of urchins
Removing a species from a food web typically results in...
Increased population of their prey
Increased population of their predators
Plant overgrowth
The whole system to collapse
The insects in the habitat would increase.
The shrew population would decrease due to being only hawk food source.
The willow tree population would decrease.
Foxes would die due to loss of all food sources.
What would happen if the grizzly bear decreased in this food web?
There would be less red tail hawks.
There would be more deer.
There would be a decrease in chipmunks.
There would be increase in butterflys.
If the grasshopper were to be removed completely from the food web, how would this affect the biodiversity of the ecosystem?
increases biodiversity
decreases biodiversity
biodiversity remains the same
we would need to know how the grasshopper was removed
