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Which of the following characteristics is exhibited by most hydrozoans?

Which of the following characteristics allowed early gnathostomes to become successful predators?

Which of the following feeding strategies is most likely to be used by aquatic organisms?

Which of the following statements correctly describes deuteromycetes?

In a tide pool, a student encounters an organism with a hard outer covering that contains a large amount calcium carbonate, an open circulatory system, and gills. The organism could potentially be a crab, a shrimp, a barnacle, or a bivalve. The presence of which of the following structures would allow for the most definitive identification of the organism?

What do many organisms with deuterostome development have in common?

Which of the following combinations correctly matches a phylum to its description?

Which of the following senses would be most directly affected by removing or damaging an insect’s antennae?

Which of the following characteristics is exhibited by both monotremes and marsupials?

Which of the following structures in an ascomycete is haploid?