Decent from a common ancestor; natural selection.
Answer:
The electron transport chain is a cluster of proteins that transfer electrons through a membrane to create a gradient of protons that creates ATP (adenosine triphosphate) or energy that is needed in metabolic processes for cellular function.
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Species relationships. People find similarities between fossils and modern organisms to connect to evolution and other factors.
Answer is Prophase
Prophase is characterized by duplication of genetic material and the condensing of the chromatin to chromosomes. This is especially useful in cytogenetics, a genetic study of chromosomes in a cell.
The chemical called mitotic inhibitors, inhibit the formation of microtubules that pull the chromosomes apart, an essential function of mitosis.