Trigger sprayer function or use

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.

Name the glands associated with human digestive system

What noticeable trend from this graph might be used to make a conclusion?