A punnet square is a chart that shows all the possible combinations of alleles that can result from a genetic cross. If you know the parents' alleles for a trait, how can you use a punnet square to predict the probable genotype of the offspring. A pea plant with round seeds has the genotype Rr
Invertebrates have no spine, and they often don't have nearly as many organs as vertebrates. Overall, they are much simpler organisms.
Answer:
a. is the energy required for molecules to react with each other
Explanation:
Activation energy may be defined as the extra energy required to start a reaction and the conversion of reactants into its products. It is the energy required to energize or activate molecules or atoms to undergo a transformation or a chemical reaction.
It is necessary for all types of chemical reaction to proceed. With the help of a catalyst the reaction rate increases as the energy of activation lower for the reaction to start.