Unit 3 and 4 Marine Science Revision Part 2

Corals first appeared in geological record,

• over 250 million years ago

• 500 000 years ago

• 20 000 years before present

• 6500 years before present

The Great Barrier Reef stabilised,

• over 250 million years ago

• 500 000 years ago

• 20 000 years before present

• 6500 years before present

The Great Barrier Reef has been shaped by,

• changes in sea surface temperature.

• volcanic activity.

• changes in sea levels.

• atmospheric carbon dioxide levels

Using the photo above, identify the type of reef structure.

• Platform

• Fringing

• Ribbon

• Atoll

Using the photo above, identify the type of reef structure.

• Platform

• Fringing

• Barrier

• Atoll

From the cross section above, identify what number corresponds with the crest.

• I

• II

• III

• IV

On the above coral polyp identify which number corresponds with the tentacle.

• I

• II

• III

• IV

On the above coral polyp identify which number corresponds with the nematocyst.

• I

• II

• III

• IV

On the above coral polyp identify which number corresponds with the gastrodermis.

• I

• II

• III

• IV

On the above coral polyp identify which number corresponds with the mouth.

• I

• II

• III

• IV