Which of these is a trait that has probably been selectively bred for by human beings?
a. speed in horses
b. breathing air in dolphins
c. eating bamboo in panda bears
d. flying in bats

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

__can be defined as which velocity changes

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.