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B chloroplasts, cell wall since the animals don't have or need them.
Answer:
The Paleozoic involved the appearance of fish, and eventually of life moving onto land. The Mesozoic was dominated by dinosaurs. The Cenozoic started with the extinction of the dinosaurs, and included the development of birds and mammals. ... The Mesozoic Era ended with another extinction.
Answer: DNA and RNA
Explanation:
because we contain dna and rna.
