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| 1 . |
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Which of these statements is true of sponges? (Activity 18A) [Hint]
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| 2 . |
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Which of these statements is true of cnidarians? (Activity 18A) [Hint]
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| 3 . |
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Earthworms are in the phylum _____. (Activity 18A) [Hint]
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| 4 . |
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Which of these statements is true of earthworms? (Activity 18A) [Hint]
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| 5 . |
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Snails are classified in the phylum _____. (Activity 18A) [Hint]
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| 6 . |
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Grasshoppers are classified in the phylum _____. (Activity 18A) [Hint]
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| 7 . |
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Which of these is a characteristic of sea stars? (Activity 18A) [Hint]
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| 8 . |
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Dogs are classified in the phylum _____. (Activity 18A) [Hint]
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| 9 . |
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This phylogenetic tree indicates that birds are most closely related to _____. (Activity 18B)  [Hint]
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| 10 . |
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This phylogenetic tree indicates that the most recent common ancestors of reptiles, birds, and mammals are _____. (Activity 18B)  [Hint]
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| 11 . |
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Which of these chordate groups lack a post-anal tail and a notochord as adults? (Activity 18B) [Hint]
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| 12 . |
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The common ancestor of all these chordate groups EXCEPT the _____ probably had paired appendages. (Activity 18B) [Hint]
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| 13 . |
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According to this phylogenetic tree, annelids are most closely related to _____. (Activity 18C)  [Hint]
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| 14 . |
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According to this phylogenetic tree, the group that includes echinoderms and chordates is most closely related to the group that includes _____. (Activity 18C)  [Hint]
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| 15 . |
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According to this phylogenetic tree, cnidarians are most closely related to _____. (Activity 18C)  [Hint]
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| 16 . |
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According to this phylogenetic tree, chordates are most closely related to _____. (Activity 18C)  [Hint]
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| 17 . |
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At the phylum level, you are most closely related to a(n) _____. (Activity 18C) [Hint]
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