D because all your veins ate nearly in your heart and if your heart stops they stop too
Answer:
speciation is when one species splits off into multiple species.
In-depth answer:
Speciation can happen in 4 different ways, the first being Allopatric Speciation, where 2 groups of the same species are physically separated for extended periods of time, and when they're re-introduced, they don't breed.
Sympatric Speciation is when 2 groups of the same species aren't seperated, but form different behaviors that isolate them reproductively (the groups wont inter-breed)
Parapatric Speciation is when 2 groups of the same species are suddenly placed into a new environmental niche, and adapt in different ways to fill that niche.
Quantum Speciation is much less recognized, but it's when a new species rapidly evolves and 'buds off' from the original group
The anatomy (Comparative Anatomy) chart contains the ones that say " compares the limbs of different organisms" and "compares fossilized structures to living organisms".
The cells (Molecular Biology) chart contains the ones that say "compares the genomes of different organisms" and "compares cells of organisms".
If this is for Plato there should be a chart that has one column for anatomy(Comparative Anatomy) and one for cells(Molecular Biology). Hope this helps.
Adenine, thymine, cytosine and guanine are the four nucleotides found in DNA.