Aristotle believed that something called the "visual flux" flowed out of eye, bounced off objects, and then returned to the eye, and that this was the basis of eyesight. how did he explain the fact that it gets dark outside at night? a, the sun is not in the s ky. b. the eye puts out less visual flux at night. c. fewer people are active at night so there is less visual flux about. d. night air is opaque because nights are cooler.

Which of the following statements about pesticides and residue is false? a. most conventionally grown produce has detectable levels of pesticides when purchased from the store.b. the us government has determined that small levels of pesticides in produce is safe for humanconsumption.c. organic produce always will be pesticide-free.d. farm workers, children, and pregnant women are at greatest health risk from pesticides. select the best answer from the choices provided.

What does 2[tex] {2}^{ - 4} \times {2}^{ - 2} [/tex]

70 pts answer the following questions in full sentences and paragraphs, using at least 150 words, in the essay box below. 1. which organisms are carnivores? herbivores? omnivores? 2. if the ecosystem is balanced, which populations should be the largest? the smallest? 3. imagine a group of hunters kills half of the rabbit population. how will the other organisms be affected? 4. imagine disease kills 85 percent of the wolf population. how will the other organisms be affected? 5. imagine a foreign mountain lion species is introduced into the ecosystem. how will the other organisms be affected?