©McGraw-Hill EducationConsider the cladogram shown. Which pair of species shares the greatest number of derived characters (synapomorphies)?
A. 2 and 4
B. 2 and 3
C. 6 and 5
D. 1 and 4
E. 6 and 4
Answer: B
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Functional traits can be shared between organisms with divergent SSU rRNA sequences because
A) functional traits may be lost by different lineages over time. B) functional traits may evolve independently in different lineages over time. C) horizontal gene transfer can result in the transfer of genes between divergent lineages. D) functional traits may evolve independently, be shared through horizontal gene transfer, or be lost in divergent lineages.
Which of the following is NOT a characteristic of amphibians?
A. They have lungs. B. They have a cartilaginous skeleton. C. They are ectothermic. D. They have a three-chambered heart. E. They have vertebrae.
Which term refers to a young moss gametophyte?
a. antheridium b. capsule c. protonema d. prothallus
The predominant bacterial species that colonizes the human skin is
A. Staphylococcus epidermidis. B. Bacterioides fragilis. C. Candida albicans. D. Lactobacillus. E. Streptococcus pneumoniae.