Products and reactants in a balanced chemical reaction have the same number of of each element.

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.

Nucleic acids offer variability because they contain alternate forms of genes called .