Which of the following represents the correct sequence, smallest to largest, of the levels of organization?
a) organism, population, biosphere, biome
b) organism, ecosystem, biosphere
c) species, organism, community, biosphere
d) ecosystem, community, species

Blood made up of red and white blood cells work together to form

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

Environmental differences within ecosystems are generally caused by