According to the theory of island biogeography, which of the following is not an island ecosystem?

a.
a mountain with thriving vegetation surrounded by an arid desert.
b.
the open ocean.
c.
grasslands that surround a lake.
d.
a cave within the forests of the appalachian mountains in the eastern united states.

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

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

If 360 joules of work are needed to move and create a distance of 4 m what is the weight of the crate