Which would likely live near a crack in the deep ocean floor that spews scalding water? a. halophile b. methanogen c. thermoacidophile d. eubacteria

An easy way to calculate the amount of energy available at each level is to what?

Which best describes meiosis? a. it produces cells that are identical to the original cell b. it is responsible for the replacement of damaged skin cells c. it is responsible for growth of the organism d. it produces male and female sex cells

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior