WorksheetsCoral Reefs
Total questions: 15
Worksheet time: 8mins
What are coral reefs often compared to?
forests
gardens
rainforests
deserts
What percentage of the ocean's sea life lives in coral reefs?
10 -15%
20%
45%
25%
Coral reefs are endangered by
climate change
overfishing
pollution
all of the above
What causes coral bleaching?
oil spills
warmer water temperatures
overfishing
red tide
What is the cause of coral bleaching.
Space Heaters
Pollution
Hot air
Global Warming
The purpose of a polyp’s tentacles is to ___________ .
trap algae
attract a mate
catch tiny animals
fight off predators
Coral Reefs are found in shallow, clear, warm water because there is
lots of sunlight for the symbiotic algae (zooxanthellae) that live with the polyps
not lots of sunlight for the symbiotic algae (zooxanthellae) that live with the polyps
no good reason, it just feels nice
all of these choices are correct
Coral polyps build their homes out of
carbon dioxide
calcium carbonate
calcium manganese
carbon monoxide
How do species of colonial corals grow?
"founder" polyp divides over and over again
"founder" polyp grows bigger and bigger
corals of different species merge as one
they don't
Which of these conditions are ideal for coral reefs?
cold and deep water
warm and shallow water
cold and shallow water
warm and deep water
