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If Asked to Point in a Photograph to the Part

Question 19
Multiple Choice

If asked to point in a photograph to the part of a fruit fly embryo that develops into the muscles and reproductive system,you would point to the A) pachyderm. B) ectoderm. C) mesoderm. D) endoderm. E) protoderm.

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Q 20
When examining a picture of a jellyfish,you notice that if a mirror is placed in any orientation so that one end of the mirror touches the top of the jellyfish and the other end touches the mouth,the mirror shows the other half of the jellyfish.Therefore,you conclude that the jellyfish has  A) longitudinal symmetry. B) mirrored symmetry. C) bilateral symmetry. D) radial symmetry. E) asymmetry.
Q 21
When examining a picture of a butterfly,you notice that there is one position in which a mirror,running from one end of the butterfly to the other,completes the image as a whole butterfly.You conclude that the butterfly has  A) radial symmetry. B) bilateral symmetry. C) longitudinal symmetry. D) mirrored symmetry. E) asymmetry.
Q 22
A fluid-filled body cavity that forms completely within the mesoderm of animals is a A) coelom. B) blastula. C) pseudocoelom. D) protostome. E) deuterostome.
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