48. Provide evidence that amphibians are both terrestrial andaquatic animals. (4)
49. Which structure was most important inallowing reptiles to break completely free of water in comparisonto amphibians?
a. better adapted eyes
b. an amniotic egg
c. four chambered heart
d. claws
50. Which of the following groups of vertebrates are endothermic(circle all that apply).
a. ‘classic’ reptiles (snakes, turtles, alligators)
b. birds
c. mammals
d. amphibians
e. fish
51. What is an advantage of being endothermic? (2)
52. What is a disadvantage of being endothermic? (2)
53. A group of mammals that lays eggs and do not have nipples,babies suck milk from the hairs on their mother’s chest.
a. monotremes
b. marsupials
c. eutherians
54. A group of mammals that have a placenta that provides oxygenand nutrients to embryos in the uterus.
a. monotremes
b. marsupials
c. eutherians
55. A group of mammals that give birth after a short period ofdevelopment. Females have a pouch where the young completedevelopment.
a. monotremes
b. marsupials
c. eutherians
56. You are an evolutionary biologist studying human lineages.While digging at your current site, a mostly intact skull of apossible human ancestor is unearthed. After analysis in the lab, itis determined that the brain capacity of the organism was 800cm3. Which genus would you place this organism in?
a. Australopithecus
b. Paranthropus
c. Homo
57. Complete the following classification for humans. (9points)
Domain______________________________________________________________________
Kingdom_____________________________________________________________________
Phylum_______________________________________________________________________
Subphylum___________________________________________________________________
Class__________________________________________________________________________
Order_________________________________________________________________________
Family________________________________________________________________________
Genus_________________________________________________________________________
Species________________________________________________________________________
