Which statement does BEST describe what happens to the vertical velocity of a projectile? * it accelerates downward
it accelerates upward
it remains constant
nothing happens to it

b) the inside picture would look at a very high temperature in a very low ph

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.