Less than 1% of the Earth is comprised of algal beds and coral reefs, and 25% of marine species are found there.
Coral reefs and algae beds are ecosystems that need special conditions to survive; even though they are in a small percentage, a wide range of marine species live there.
As reefs need special conditions such as:
They are present only in 1% of the earth's surface since these conditions are not found easily in different parts of the world.
Even though the coral reefs and algae beds cover a small Earth's percentage, they are an ecosystem that is necessary for 25% of marine life, which equals 1 million species. Not all the species live there permanently; some use the algae beds or reefs at some moment and then leave. However, without these places, those species would not survive.
In conclusion, 1% of the Earth comprises algae beds and coral reefs, and 25% of all marine species are there.
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