_[blank]_ are the materials that change in a chemical reaction, while _[blank]_ are the substances formed by changes in a chemical reaction. Which answer choice presents the correct words to complete this sentence?

Inputs; outputs
Outputs; inputs
Reactants; products
Products; reactants

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a.the offspring are more likely to have freckles. b.the offspring are more likely to have no freckles. c.the likelihood of the offspring having freckles and not having freckles is the same. d.the likelihood of the offspring having freckles and not having freckles cannot be determined.