In the animal kingdom, cephalization is
A) development of a body that has paired structures forming a side-to-side mirror image.
B) the ability to respond rapidly to external stimuli.
C) development of eyes at the anterior end of the organism.
D) evolutionary development of a netlike system of veins.
E) concentration of sensory structures in the head.
Correct Answer:
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Q11: Damage to the embryonic ectoderm would show
Q12: Organisms that are radially symmetrical have_ embryonic
Q13: Between the organs and the body wall,
Q14: An arthropod embryo has _germ layer(s).
A) no
B)
Q15: One trend in the evolution of animals
Q17: The skin and nervous tissues develop from
Q18: A cnidarian, which is radially symmetrical, has
Q19: All animals with tissues have
A) radial symmetry.
B)
Q20: Which of the following characteristics is associated
Q21: The simplest multicellular animals that have only
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