A ____ is an underground stem that is greatly enlarged for food storage
a. sucker
b. runner
c. plantlet
d. stolon
e. tuber
e
Biology & Microbiology
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Which of the following structures are NOT used by chemical synapses during signal transmission?
a. gap junctions b. ligand-gated receptors c. Ca2+ d. vesicles e. neurotransmitters
Biology & Microbiology
The infective phase of Giardia intestinalis is
A. the cyst B. the trophozoites C. the oocyst D. the promastigote
Biology & Microbiology
All steroids have ____.
A. the same number of double bonds B. one or more fatty acids C. four rings of carbon to which other atoms are attached D. the same functional groups E. the same number and positions of double bonds
Biology & Microbiology
Which organ is part of more than one organ system?
A. Stomach B. Liver C. Pancreas D. Intestine E. Brain
Biology & Microbiology