The correct matches are:
Birds - A
Dinosaurs - B
Amphibians - C
Corals - D
Trilobites - E
By the statements presented, we have the situation where the trilobites are the oldest of the species, thus they will be on the bottom layer. The corals are second ones that emerged, so they will be found in the second bottom layer, and after them come the amphibians that will be found in the third layer. The dinosaurs evolved after the amphibians, so since they are younger than them, they will be located in the second layer from the top, with the birds evolving from the later dinosaurs and being the youngest, they will be found in the top layer.
15.5 I believe is the answer, if not then its 25.25
Each term of a chemical compound required for the given statements are in bold letters as depicted below.
<h3>How to define chemical compounds?</h3>
1) The chemical compounds that are present before a reaction occurs is called; reactants
2) The compounds produced from the reaction are called; products
3) Unit of measure, containing Avogadro's number is called; Mole
4) The quantitative proportion of reactants to products is called; Stoichiometry.
5) Two solutions are mixed and an insoluble substance forms; A precipitation reaction
6) An illustration of the reaction that occurs between two or more chemical compounds is called; chemical equation
7) A solid compound that contains water molecules is called hydrates.
Read more about Chemical Compounds at; brainly.com/question/26487468
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