Answer:
D. water vapor
Explanation:
water vapor is a gas and could not be used as a resource
Answer:
True
Explanation:
The temperature can rise as high as 1500 C, the gas molecules are very far apart. This layer is completely cloudless and free of water vapour
Answer:
They don't have DNA common. In prokaryotic cells there is a single piece of DNA whereas in eukaryotic there are multiple chromosomes.
Answer:
The most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago. ... 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago in the Precambrian.
