A student draws this model to show how humans evolved from ancestral primates. What are the pros and cons of this model in regard to the theory of evolution? Explain how you’d make it more accurate. To create a scientifically credible answer, use a credible website to research human evolution.

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked