Which one of the following terms applies to the phylum Platyhelminthes?
A. protostome
B. acoelomate
C. diploblastic
D. radial symmetry
E. radial cleavage
Answer: B
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Which one of the following is the organ of the inner ear that contains hair cells which convert fluid pressure waves to nerve impulses?
A. vestibular System B. semicircular canals C. organ of Corti D. statolith
Which of the following is an advantage of the human circulatory system over the circulatory system of tarantulas?
a. The human system functions under lower pressure. b. The human system requires less energy to operate. c. The human system allows direct contact between tissues and blood. d. The human system can direct the relative amount of flow of blood to different organs. e. The human system permits more rapid exchange of gases between respiratory pigment and tissues.
what kind of viruses are persistent chronic viral infections? (bud)
What will be an ideal response?
A new security technique is the use of
a. fingerprinting. b. iris scanning. c. retinal scanning. d. tooth identification. e. skin pigment scanning.