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Concepts of Biology

Visual Connection Questions

Concepts of BiologyVisual Connection Questions

1.

Figure 15.3 Which of the following statements is false?

  1. Eumetazoa have specialized tissues and Parazoa do not.
  2. Both acoelomates and pseudocoelomates have a body cavity.
  3. Chordates are more closely related to echinoderms than to rotifers according to the figure.
  4. Some animals have radial symmetry, and some animals have bilateral symmetry.
2.

Figure 15.24 Which of the following statements about the anatomy of a mollusk is false?

  1. Mollusks have a radula for scraping food.
  2. Mollusks have ventral nerve cords.
  3. The tissue beneath the shell is called the mantle.
  4. The mantle cavity contains hemolymph.
3.

Figure 15.33 Which of the following statements about common features of chordates is true?

  1. The dorsal hollow nerve cord is part of the chordate central nervous system.
  2. In vertebrate fishes, the pharyngeal slits become the gills.
  3. Humans are not chordates because humans do not have a tail.
  4. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.
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