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A) Pseudocoelomates can be seen as an intermediate stage between acoelomate and coelomate development. B) Although acoelomates and pseudocoelomates evolved only once, coelomates evolved multiple times in different lineages. C) Only the animals that evolved earliest are acoelomates. D) Some pseudocoelomates and acoelomates have evolved from coelomates. Answer: D Type: MC Reference: Section 30.2 Bloom's Taxonomy: Remembering LO: 30-4. Build a phylogenetic tree that reflects our current understanding of the evolutionary relationships among the major lineages of animals. 20) The text describes four ways, or tactics, of feeding. Which of the following is NOT one of those ways? A) suspension feeding B) food-mass feeding C) herbivory feeding D) deposit feeding E) fluid feeding Answer: C Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction. 21) A typical ectoparasite has all of the following characteristics EXCEPT that it A) lives outside its host. B) grasps its host with its legs or mouth. C) has piercing mouthparts. D) feeds from an organism larger than itself. E) lacks a digestive system. Answer: E Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction.

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22) Parasitism is one of the most successful life strategies ever to evolve. Which of the following is consistent with this finding? A) Parasites almost always predigest their hosts' tissues and, therefore, spend less energy and require fewer structural adaptations. B) Parasites, unlike predators, feed on almost all the tissues of their host. C) Parasites do not generally kill their hosts, thus they can feed on the same host throughout the host's normal life span and do not have competition from decomposers. D) Parasites generally kill their host and can feed for a very long time because they are much smaller than their host. Answer: C Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction. 23) Due to its unusual habitat (inside the digestive tracts of other animals), the tapeworm lacks A) a head. B) a mouth. C) a digestive tract. D) B and C E) A, B, and C Answer: D Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction. 24) Suppose all of the suspension feeders were removed from a lake. What would you expect to happen after a brief period of time? A) The water would become clearer. B) The water would become murkier. C) The water would remain the same. Answer: B Type: MC Reference: Section 30.3 Bloom's Taxonomy: Comprehension LO: 303. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction.

25) What would an adult animal that possesses bilateral symmetry most likely be? A) triploblastic B) a deuterostome C) a coelomate D) diploblastic Answer: A Type: MC Reference: Section 30.2 Bloom's Taxonomy: Remembering/Understanding LO: 30-2. Describe the fundamental changes in morphology and development that occurred as animals diversified, including symmetry, cephalization, germ layers, limbs, etc. 26) Which of the following feeding tactics is consistent with this list of features: two-part stomach capable of breaking down tough food particles; simple mouthparts; the ability to burrow through, and consume, indigestible fecal material to get to hidden food? A) suspension feeder B) fluid feeder C) deposit feeder D) food-mass feeder Answer: C Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction. 27) Which feeding tactic is most associated with a large-toothed, predatory carnivore? A) suspension feeder B) fluid feeder C) deposit feeder D) food-mass feeder Answer: D Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction.

Figure 30.4 28) Dll is a gene known to direct limb development in the fruit fly. Researchers studying this gene have found that it is also expressed in developing appendages in animals from many other phyla as well, supporting the hypothesis that all animal appendages may be homologous. However, suppose researchers looking at Dll activity had instead found the results shown in Figure 30.4. What would these results suggest? A) Dll is not actually involved in appendage development. B) Appendages evolved separately in protostomes and deuterostomes. C) Appendages coevolved with segmentation. D) All animal appendages are homologous. Answer: B Explanation: Optionally, a figure from the text or a simplified version thereof (including only the phyla listed above and with protostome/deuterostome development and segmentation marked) could be included with this question to make it more analytical and less recall based (i.e., the students would not have to remember the details of the phylogeny in order to answer the question). Type: MC Reference: Section 30.2, 30.3 Bloom's Taxonomy: Comprehension LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction.

29) Limbs—especially jointed limbs—are an important evolutionary development because they allow animals to A) inhabit aquatic environments. B) develop an endoskeleton. C) move quickly and precisely. D) undergo complete metamorphosis. E) have young disperse from sessile adults. Answer: C Explanation: Optionally, a figure from the text or a simplified version thereof (including only the phyla listed above and with protostome/deuterostome development and segmentation marked) could be included with this question to make it more analytical and less recall based (i.e., the students would not have to remember the details of the phylogeny in order to answer the question). Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction. 30) Which reproductive strategy is facilitated by (i.e. is easier to use in) an aquatic habitat, as compared with a terrestrial habitat? A) asexual reproduction B) sexual reproduction C) external fertilization D) internal fertilization E) viviparity Answer: C Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction. 31) To reproduce, many plants produce seeds—structures containing embryonic offspring along with nutrients inside a tough case. These offspring develop after being released by the parent plant. To which animal reproductive strategy is seed production most comparable? A) oviparous reproduction B) ovoviviparous reproduction C) viviparous reproduction Answer: A Type: MC Reference: Section 30.3 Bloom's Taxonomy: Remembering LO: 30-3. List several examples of the diverse adaptions of animals, including their senses and adaptations for feeding, movement, and reproduction.