Science is
a collection of opinions and beliefs
a process to use to investigate the natural world
experiments that prove complicated things about the world
all the laws that govern the universe

the eggs of the insects should be the first thing collected at the scene.

false

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.