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.
It indicates that our ancestors had a different build than humans of today.
Answer:
Signposts that determine the fate of cells.
Explanation:
Embryos for humans and other animals often look alike at certain developmental stages because they share ancient genes. This expression means that a more advanced organism, like humans, will resemble less advanced species during it's development stages.
Of the given possible statements, the one that best supports that a newly discovered species is that the animal's body temperature increased when the ambient temperature increased. An exothermic animal relies on eternal temperatures to keep warm and so a rise in ambient temperatures would cause a rise in internal temperatures of the animal. Therefore, the answer is a.
