Ameasurement must include both a number and a(an)

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 type of competition exsist between two species. turtles and fish

What best describes the structure of the declaration of independence?