The stems of a(an) do not form wood?

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.

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

Explain how the political influence of african americans leaders became weaker.