Which of the following best depicts energy flow in an ecosystem? food web

a diagram drawn out in the dirt. Wait that's a pickup football play: Billy you go long Bobby cut in at the fire storage shed...

food chains and food webs equally depict energy flow in an ecosystem

food chain

nutrient cycle

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

Which element provides strength to the exoskeleton of clams and oysters

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