Using Red Litmus Paper. Red litmus paper is dipped into a solution to establish whether a substance is acidic or alkaline. In an acidic or neutral solution, red litmus paper remains red. ... When an alkaline compound dissolves in water, it produces hydroxide ions, which cause the solution to become alkaline.
They all need energy, food, and water. If we're talking about animals, then they need oxygen. If we're talking about plants, then they need carbon dioxide
They do not need parents. Some animals don't have parents the moment they are born (eg: sea turtles).
So based on all that, B seems like the best answer
(ANSWER)
Choice B, because the beetle gets energy from A. The racoon gets energy from the beetle, B, and corn. And B gets its from blackberries.