Coral Reefs

Question 1

Define coral

Answer 1

Coral are tiny marine animals that create skeleton houses out of limestone rock.

Question 2

A another name coral?

Answer 2

Polyps

Question 3

What are coral reefs

Answer 3

Coral reefs are made up of various types of coral and algae that give colour

They make up a diverse ecosystem that include
many species of organisms.

Question 4

Another word for algae?

Answer 4

zooxanthellae

Question 5

Conditions for algae growth

Answer 5

1. Shallow seas must be less than 70m deep.
2. Sea temperature must be between 20 to 30 degrees Celcius
3. Clear salt water
4. Water with lots of oxygen and nutrients

Question 6

Why is it important for shallow seas to be 70m deep?

Answer 6

The sun rays can penetrate this depth allowing algae to photosynthesize and grow.

Question 7

Where are sea temperatures usually located?

Answer 7

These temperatures are found in the tropics, between 30 degrees
south latitude and 30 degrees north latitude

Question 8

Reasons why it is essential for clear salt water?

Answer 8

Polyps cannot live for long in fresh
water.

Minerals dissolved in sea water
causing it to be salty, provide food
for the polyps.