5. Using these fossils, fill in the following chart: Boisei Front tooth (incisors and canines) relative size (smaller/larger) a. b. Back tooth (premolars and molars) relative size (smaller/larger) C. Relative Brain size (smaller/larger) d. Sagittal crest? (Absent/Present) Mandible (Jaw-bone) robusticity? (Robust or Gracile)? e.

You are studying the skeleton and bone morphology across reptiles. You find that in alligators a certain bone in the jaw has elongated whereas in a species of chameleon the bone has shortened in the jaw. In both species the bone still helps control feeding. Is this bone and skeletal morphology a homology?   a. Yes, it is a homology   b. No, it is not a homology   c. Not enough information to tell   d. The answer depends on the specific diet of each species

1. In a four-legged animal, which of the following terms is synonymous with anterior?   A. Ventral B. Dorsal C. Caudal D. Frontal E. Cranial F. Medial   2. 2 Structures in different animals that are similar in appearance are best described as: A. Convergent B. Homoplastic C. Analogus D. Homologous   3. When standing upright with your arms at your sides, compared to your wrist, your fingers are (choose the 2 correct choices): A. lateral B. Distal C. Anterior D. Proximal E. Superior F. Inferior G. Frontal   4. Which of the following is the highest level of organization in living organisms?   A. Tissue B. System C. Organ

Despite the differences in neck length, mice, humans, and giraffes all have seven cervical vertebrae. This is an illustration of A. missing links. B. homologous structures. C. vestigial structures. D. analogous structures.