WorksheetsBiodiversity
Total questions: 13
Worksheet time: 20mins
High biodiversity is a sign of a healthy ecosystem.
True
False
Image "B" shows more biodiversity than image "A". Why?
Because "B" shows more different species than image "A"
Because image "B" has less different species than "A"
"A" has a greater number of same species plants so this statement is wrong.
Both images show the same biodiversity
The prefix Bio means
life
birds
science
ecosystems
Biodiversity is the ____________ and variability of __________ on earth
variety
life
diversity
difference
A stable ecosystem typically has high biodiversity.
True
False
A species that plays a critical role in the health, maintenance, growth, or definition of an ecosystem.
keystone
invasive
engineer
predator
Why are bees considered a keystone species?
The honey they make supports the bear population
They pollinate flowers that produce fruit which supports the ecosystem
They sting when threatened
They live in hives
Why are some sharks considered a keystone species?
Because they are a top predator
They scare off smaller fish that may overgraze an area of sea grass
They are tertiary consumers
They are cartilaginous
Which one of the following keystone examples is a keystone predator found in the tidal pools of northwestern North America and was the species that launched Robert Paine’s keystone species concept?
starfish
sea otters
beavers
wolves
elephants
Which one of the following keystone examples play a vital role in the health of coastal kelp forests?
starfish
sea otters
beavers
wolves
elephants
