Answer:
The correct option is A. It is the largest single structure created by organisms and is the largest coral reef in the world.
Explanation:
The Great Barrier Reef comprises of about two thousand and nine hundred reefs. This Great Reef covers an area of about 900 islands. The Great Barrier Reef is such huge that it can be seen from the outer space. Millions of tiny organisms which are known as corals polyps make up the Great Barrier Reef. The Great Barrier Reef is a wonder because it is the largest single structure made by humans and hence its name was suggested to be among the natural wonders of the world.
A) 8% - because cytosine pairs with guanine so they have the same percentage and that makes it up to 84%. Adenine and Guanine also occur in the same percentages are they pair so 100-84 leaves 16% remaining, divided by 2 leaves 8% for both cytosine and guanine.
Answer:
Oxygen is a colourless, odourless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere.
Its in creased biomass in the quaternary level because of the food chain process.
C
<span>volcanic </span>eruptions....
hope this helps you... =')
