How does meiosis help the chromosome number of a species remain constant? a) by causing gametes to have half the species' chromosome number
b) by combining all the pairs of the species' chromosomes
c)by eliminating the chromosomes that the species no longer uses
d) by saving energy so the species can maintain its chromosomes

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

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.