Once supported by a predictable experimental outcome, a scientific hypothesis a still cannot be considered to have been proven true. b. can be used to predict the outcome of all future similar events. c is elevated to the status of theory. d. is never reexamined.

Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes