Answer:
Mesozoic Era
Explanation:
The "Mesozoic Era" is divided into three periods: <em>Triassic, Jurassic and Cretaceous.</em> During the last period (Cretaceous), which was considered the longest, the extinction of reptiles occurred and the new mammals appeared. This event was also known as the "Cretaceous-Paleogene Extinction Event." Around <em>3/4 of plants and animals died</em>. Such event became significant boundary that laid between the Cenozoic Era and the Mesozoic Era. This made it significant in geologic history.
not sure about this one because ATP and energy are technically the same thing
but i believe that A is the correct answer
Commensalism :)
in case when bacteria and human, both are benifited.
Economics - is the social science that describes the factors that determine the production, distribution and consumption of goods and services
Gaurd cells are high for exchange of gad
