BIO 116 Exam 1 questions with correct answers

All viruses have: genetic material, capsomeres, an envelope, ribosomes Answer genetic material & capsomeres basal taxon Answer first to diverge from common ancestor identify the statement which CORRECTLY describes all clades. a. include an ancestral species & some of its descendants b. members are grouped together based on morphology c. they are groups that don't share a common ancestor d. they are monophyletic groups Answer d. they are monophyletic groups Identify the statement which CORRECTLY describes evolution. a. genetic changes over generations within a population b. results from evolutionary adaptations within individuals c. occurs by natural selection d. decreases the number of individuals within a species by eliminating alleles Answer a. genetic changes over generations within a population An elephant at the zoo has been diagnosed with a viral infection. Hypothesize which of the following is TRUE regarding the phylogenetics of the elephant and the virus. a. They are sister taxa because the elephant is infected with the virus. b. They form a polytomy because the virus is a disease and the elephant is the host. c. The elephant is in the domain Eukarya whi