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WorksheetsCorals
Total questions: 15
Worksheet time: 3mins
Jellyfish, anemones and coral all belong to phylum:
Porifera
Cnidaria
Echinodermata
Coral eat small floating animals called as ________________
zooplankton
prawns
fish
Which is not a condition for coral growth?
Warm temperatures, about 27oC
Fresh or silt laden water
Shallow sunlit water
Water with normal salinity
Corals are types of
plants
rocks
animals
algae
Which can be considered to b e benefits of coral reefs?
(i) Tourism
(ii) Employment enhancement
(iii) Coral Mining
(iv) Fishing
(i) (ii) (iii)
(ii) (iii)
(i) to (iv)
(i) (ii) (iv)
"A reef lying parallel to the coast but separated from it by a wide lagoon."
The above statement refers to a/an
Fringing reef
Barrier reef
Uplifted reef
Atoll
What is the main reason of coral death?
Excess Bleaching
Excess Nitrogen
Coral Bleaching
No sunlight
What color does the coral turn when it is bleached?
Blue
Clear
White
All of the above
Coral Reefs live in...
Cold and deep water
Warm and shallow water
A dinoflagellate with a mutualistic relationship with coral
Zooxanthellae
Chordata
Osteichtyes
Lateral line
This structure is a stinging cell
outer epidermis
nematocyst
stomach
basal plate
This shell is made of
calcium carbonate
sodium chloride
magnesium sulfate
basal plate
What is not a characteristic of cnidarians?
Radial symmetry
Circulatory system
Stinging cells
Single body cavity
