Which of the following is the correct sequence, from simplest to most complex, in the levels of structural organization of the human body?
A) chemical level, tissue level, cellular level, organ system level, organ level, organismal level
B) chemical level, cellular level, tissue level, organ level, organ system level, organismal level
C) cellular level, chemical level, tissue level, organ level, organ system level, organismal level
D) cellular level, tissue level, chemical level, organ level, organ system level, organismal level
Answer: B
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Humans have specialized organ systems compared to smaller organisms because
A) we have to interact with our environment and smaller organisms do not. B) smaller organisms do not need as many nutrients. C) our cells are larger. D) small organisms do not do the same processes than humans do. E) there is multicellularity and increased size in larger organisms.
Epithelium that is primarily secretory in function would most likely be
A. simple cuboidal. B. transitional. C. keratinized columnar. D. stratified squamous. E. simple squamous.
Auditory "startle" reflexes originate in the:
a. precentral gyrus b. superior colliculi c. inferior colliculi d. intermediate mass
Nerve fibers from all regions of the retina converge on the ________ and exit the eye by way of the optic nerve.
A. macula lutea B. lens C. optic disc D. ora serrata E. fovea centralis