The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears
He means its more then just what your genes give you its what you can overall think of
The correct option is D.
The Endangered Specie Act was enacted in 1973. It is an environmental law which provides for the conservation of species that are endangered or threatened and the preservation of the ecosystem in which they live. The law prohibit the catching and killing of endangered species.
Answer:
Roundworm
Explanation:
Unsegmented kicks out the possibility of A or D. Roundworms are pointed at their ends and have distinct males and females