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Basic Biology Practice Test: Basics of Invertebrates
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Basic Biology Practice Test: Basics of Invertebrates
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25 Questions

1. Which of the following is a characteristic of nematodes?
2. How many of the following are characteristics of arthropods? 1.protostome development 2.bilateral symmetry 3.a pseudocoelom 4.three embryonic germ layers 5.a closed circulatory system
3. The organ(s) of respiratory gas exchange in oligochaetes is (are)
4. Among the invertebrate phyla, phylum Arthropoda is unique in possessing members that have
5. A shared derived characteristic for members of the arthropod subgroup that includes spiders would be the presence of
6. A brachiopod can be distinguished from a bivalve by the presence of
7. A student observes a wormlike organism crawling about on dead organic matter. Later, the organism sheds its outer covering. One possibility is that the organism is a larval insect (like a maggot). However, it might be a member of the phylum ________, and one way to distinguish between the two possibilities is by looking for ________.
8. The excretory organs of annelids are
9. The water vascular system of echinoderms
10. Which phylum is characterized by animals that have a segmented body?
11. Which clade in the phylum Cnidaria includes 'jellies' with rounded (as opposed to boxlike) medusae?
12. A terrestrial animal species is discovered with the following larval characteristics: exoskeleton, system of tubes for gas exchange, and modified segmentation. A knowledgeable zoologist should predict that the adults of this species would also feature
13. In terms of food capture, which sponge cell is most similar to the cnidocyte of a cnidarian?
14. Humans most frequently acquire trichinosis by
15. The members of which clade in the phylum Cnidaria occur only as polyps?
16. A radula is present in members of which clade(s)?
17. While sampling marine plankton in a lab, a student encounters large numbers of fertilized eggs. The student rears some of the eggs in the laboratory for further study and finds that the blastopore becomes the mouth. The embryo develops into a trochophore larva and eventually has a true coelom. These eggs probably belonged to a(n)
18. Which of the following is true of members of the phylum Cnidaria?
19. A sponge's structural materials (spicules, spongin) are manufactured by the
20. A stalked, sessile marine organism has several feathery feeding structures surrounding an opening through which food enters. The organism could potentially be a cnidarian, a lophophorate, a tube-dwelling worm, a crustacean, or an echinoderm. Which of the following traits, if found in this organism, would allow the greatest certainty of identification?
21. Planarians lack dedicated respiratory and circulatory systems because
22. One should expect to find the '9 + 2 pattern' of microtubules in association with the feeding apparatus of which of the following?
23. Which chemical is synthesized by some sponges and acts as an antibiotic?
24. You find a small animal with eight legs crawling up your bedroom wall. Closer examination will probably reveal that this animal has
25. The heartworms that can accumulate within the hearts of dogs and other mammals have a pseudocoelom, an alimentary canal, and an outer covering that is occasionally shed. To which phylum does the heartworm belong?

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