Match the time frame listed on the left with the characteristic listed on the right.
Mesozoic era
?
Age of the dinosaurs
End of the
Mesozoic era
?
Most of Earth a desert
?
A layer of iridium
deposited all over Earth
End of the
Paleozoic era

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

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina