In addition to tempature and precipitation, koppens climate system classified by a regions

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

What is the most appropriate method of gaining weight (muscle mass)

What substance acts to prevent sudden ph changes in bodily fluids?