Top 10 most missed: Winter Break Test
Form B
13. Which is not a characteristic of all mammals?
b. giving birth to live young (viviparous)
19. Tissues stained with purple dye were probably derived from
c. endoderm only
20. Which of these characteristics added most to vertebrate success in relatively dry environments?
a. amniotic egg
24. Which of the following is not found in annelids?
e. a cuticle made of chitin.
25. Which molluscan class includes members that undergo embryonic torsion?
d. Gastropoda
26. Which of the following characteristics indicates that mollusks are more closely related to arthropods
than chordates?
c. pattern of coelom formation
30. Among the invertebrates, arthropods are unique in possessing
d. wings
35. An arthropod has all of the following characteristics except
c. a pseudocoelom
36. During chordate evolution, what is the sequence (earliest to recent) in which of the following
structures arose?
1. amniotic egg
2. paired fins
3. jaws
4. swim bladder
5. four-chambered heart
a. 2,3,4,1,5
37. A terrestrial animal species is discovered with larval characteristics: exoskeleton, tracheal system for
gas exchange, modified segmentation. Its adult form will most likely have…
d. an open circulatory system.
38. What is the probable sequence in which the following clades of animals originated (earliest to
recent).
a. tetrapods
2. vertebrates
3. deuterostomes
4. amniotes
5. bilaterians
b. 5,3,2,1,4