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A DNA molecule is a polymer made of subunits (monomers) called
evolved from the same ancestor.
nucleotides
are found in the deepest strata.
Seaweeds were too soft to fossilize well.
a sequence of bases that determine the traits of an organism.
complex structures often evolve step-by-step.
3
the order of bases (As, Ts, Cs and Gs) in the molecule.
Organisms that possess homologous structures probably
evolved from the same ancestor.
nucleotides
are found in the deepest strata.
Seaweeds were too soft to fossilize well.
a sequence of bases that determine the traits of an organism.
complex structures often evolve step-by-step.
3
the order of bases (As, Ts, Cs and Gs) in the molecule.
The fossil record of horses reveal that
evolved from the same ancestor.
nucleotides
are found in the deepest strata.
Seaweeds were too soft to fossilize well.
a sequence of bases that determine the traits of an organism.
complex structures often evolve step-by-step.
3
the order of bases (As, Ts, Cs and Gs) in the molecule.
Biologists group living things into how many domains?
evolved from the same ancestor.
nucleotides
are found in the deepest strata.
Seaweeds were too soft to fossilize well.
a sequence of bases that determine the traits of an organism.
complex structures often evolve step-by-step.
3
the order of bases (As, Ts, Cs and Gs) in the molecule.
The oldest fossils usually
evolved from the same ancestor.
nucleotides
are found in the deepest strata.
Seaweeds were too soft to fossilize well.
a sequence of bases that determine the traits of an organism.
complex structures often evolve step-by-step.
3
the order of bases (As, Ts, Cs and Gs) in the molecule.
The information carried by a DNA molecule is in
evolved from the same ancestor.
nucleotides
are found in the deepest strata.
Seaweeds were too soft to fossilize well.
a sequence of bases that determine the traits of an organism.
complex structures often evolve step-by-step.
3
the order of bases (As, Ts, Cs and Gs) in the molecule.
We know a lot about fossil crabs, snails and corals, but not much about ancient seaweeds. Why do you suppose this is the case?
evolved from the same ancestor.
nucleotides
are found in the deepest strata.
Seaweeds were too soft to fossilize well.
a sequence of bases that determine the traits of an organism.
complex structures often evolve step-by-step.
3
the order of bases (As, Ts, Cs and Gs) in the molecule.
A gene is
evolved from the same ancestor.
nucleotides
are found in the deepest strata.
Seaweeds were too soft to fossilize well.
a sequence of bases that determine the traits of an organism.
complex structures often evolve step-by-step.
3
the order of bases (As, Ts, Cs and Gs) in the molecule.
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