Polymerase chain reaction
<u>Answer:</u>
Comparing and contrasting embryos of different species is called Comparative embryology.
<u>Explanation:</u>
It is the branch of embryology where embryos of different specie are compared to find out that how two special are evolutionary similar or different from each other. It also helps in the identification of organism's closest ancestor. For example: When Aristotle observed embryos of different animal specie, he described that egg laying (oviparous) organisms are different from birth giving (viviparous) organisms. This has a connection with organism's developmental pattern which tell that both organisms have different or common ancestry.
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The answer would be mitochondria
The primary form of energy that the cell use are come from ATP. The body could produce ATP through different path of metabolism, but the highest amount of ATP produced from electron transport chain. Mitochondria is the main organelle of the cell that produce ATP because it allow the cells to do electron transport chain.
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oxygen
Your cells need oxygen to convert the nutrients you eat into energy for your body. In the process of making that energy, some waste products are produced. One of the main waste products is a gas called carbon dioxide.
( Least specific ) kingdom, phylum, classification, order, family, genus, species (most specific)
(it goes from broad to most specific)
