4. Why are the time periods of the Paleozoic and Mesozoic subdivided into early, middle, and late instead of named epochs, as they are in the Cenozoic? O The rocks of these time periods are too young to provide sufficient data to subdivide the periods based on the ages of rocks.
O The fossil record for the Paleozoic and Mesozoic eras is not sufficient to subdivide the periods based on the presence of organisms.
O The number of fossils discovered outnumbers the quantity needed to subdivide the periods based on the presence of organisms.
O The terms early, middle, and late are easier to remember, which removes some confusion for those studying the geologic time scale. We

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus

multiply it by 5 in order for you to understand i cant give an exact answer.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).