Which of the following is correct when comparing reactants and products? a. reactants have more mass than products. b. products have more mass than reactants. c. pure substances making up reactants are different than those in products. d. pure substances making up reactants are the same as those in products.

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?

Describe a desert community where there are fewer producers than consumers.

You are shown 2 samples of the earthes crust . the first is denser than the second . which most likley is oceanic crust