Introduction :
The invertebrates are the organism that lack vertebral column and are comparatively less complicated. The Annelida a phylum that belong to segmented worms.
Answer to Problem 32A
Correct answer :
Option (C).
Explanation of Solution
Explanation/justification for the correct answer :
Option (C) Polychaetae. The polychaetae are the organism that have multiple segmented body. They are generally marine and have parapodia for movement. The diagram shows an animal with multiple segments and multiple parapodia. Hence, the correct answer is option (C).
Explanation for incorrect answer :
Option (A)Roundworm. The roundworms have smooth body they do not have segments and are completely round. Hence, it is an incorrect answer.
Option (B) leech. The leech has a flat body and a sucker at the posterior end. This sucker help in attaching to the host, this animal does not have a sucker. Hence, it is an incorrect answer.
Option (D) earthworm. The earthworm is smooth and have less setae also they have tapered end, which is absent in this animal. Hence, it is an incorrect answer.
Chapter 25 Solutions
Biology Illinois Edition (Glencoe Science)
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