PART 4: I HAVE A FEW QUESTIONS THAT I NEED TO ANSWER YOU DO NOT NEED TO ANSWER ALL, IS YOU KNOW ANY OF THEM PLS HELP! And don't forget to add the question number so I know which one you are talking about. And most of them are multiple-choice.

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.

Rotenone is an insecticide that is toxic

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis