Stanley Miller and Harold Urey were the first to demonstrate that
A. the earliest genetic material was RNA, rather than DNA.
B. meteorites contain amino acids, many of which exist on
Earth.
C. earth formed from a nebula approximately 4.6 billion years,
Ago.
D. organic molecules can be formed from inorganic molecules

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation:

when it's short and dry.

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