6. A gas tax imposed by some states in which those who use the roads more pay more to maintain them is based on the O ability to pay
O efficiency
O benefits received
Osimplicity

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.

Why do you think the puppy litter was all dark-haired?

What part of the brain is highlighted in the diagram below?