The deer population decreased drastically because there were so many hostile animals where the deer where. For instance the wolves went up, then down as the deer decreased. When the wolves were low, the deer increased in growth.
To accomplish this, the reaction sequence includes both reactions irreversible and reversible.
Irreversible reactions are the ones that include conversion of reactants to products where the products cannot convert back to the reactants. On the other hand in reversible reactions, the reactants and products are never fully consumed (constantly are reacting and being produced).
Three levels of biodiversity: genetic, species and ecosystem
The group that contains more individual aliens is a class
Part b is the answer- Mesopelagic and Epipelagic