What do you think the distribution of african americans in the united states will look like fifty years in the future? will there be a widespread diffusion, or will african-americans return to locations in which they have a stronger ethnic base?

You don’t need to look at a map to tell you were to go, then you probably have . cognitive load. b. misperception. c. photographic memory. d. mental

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?

Which of the following can scientists estimate geologic time? a.observing rock sequences b.radiometric dating c.comparing fossils d.all of these