Why should fishery managers not view cod stocks as separate from other fish stocks such as capelin and mackerel?
a.
these fish species all form schools together and are therefore caught together.
b.
capelin and mackerel both compete with cod for ocean floor habitat.
c.
these populations of these fish species are all related through the ocean food web.
d.
there is no reason for fishery managers not to view cod stocks individually.

What are two reasons for why a species might disappear from the fossil record?

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page