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| 1 | |
Which of these is NOT an important characteristic of mollusks? |
| | A) | Mollusks range from microscopic to huge and exhibit many different forms. |
| | B) | They all have a coelom surrounding the heart. |
| | C) | The mollusk body plan is relatively simple and static. |
| | D) | Mollusks are generally bilaterally symmetrical, at least at some point in their lives. |
| | E) | They use a muscular foot (podium) for locomotion, attachment, food capture, or a combination. |
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| 2 | |
In annelids, each segment contains a pair _____ of that excrete wastes out of the body via the coelom and excretory tubes. |
| | A) | nephridia |
| | B) | cnidocytes |
| | C) | choanocytes |
| | D) | kidneys |
| | E) | trachea |
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| 3 | |
Bryozoa and Brachiopoda are characterized by a _____, a U -shaped ridge around the mouth bearing ciliated tentacles. |
| | A) | nephridia |
| | B) | coelom |
| | C) | zoecium |
| | D) | lophophore |
| | E) | tagma |
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| 4 | |
Which of these is NOT an Arthropod class? |
| | A) | Class Chelicerata |
| | B) | Class Crustacea |
| | C) | Class Hexapoda |
| | D) | Class Myriapoda |
| | E) | These are all classes of arthropods. |
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| 5 | |
Which of these statements is TRUE about Echinoderms? |
| | A) | Echinoderms are a relatively recent lineage. |
| | B) | Echinoderms are characterized by deuterostome development, pentameral symmetry, an endoskeleton covered by a delicate epidermis, and a water-vascular system. |
| | C) | Echinoderm symmetry is lacking in larvae and bilateral in adults. |
| | D) | The water-vascular system is the only coelomic compartment |
| | E) | The four classes of echinoderms are Chelicerata, Crustacea, Hexapoda, and Myriapoda. |
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