A/the ____ detects a stimulus and sends this information to the nervous system
a. gland
b. muscle
c. brain stem
d. sensory receptor
e. hypothalamus
ANSWER: d
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When acetylcholine stimulates the opening of ligand-gated ion channels on a postsynaptic cell, what is this event called?
A. neuromuscular junction B. temporal summation C. inhibitory postsynaptic potential (IPSP) D. excitatory postsynaptic potential (EPSP) E. synaptic integration
How do the protein fibers in the matrix ground substance compare between loose and fibrous connective tissues?
A) In loose connective tissues, the protein fibers are loosely woven, but in fibrous connective tissues, the fibers are densely packed. B) In fibrous connective tissues, the protein fibers are loosely woven, but in loose connective tissues, the fibers are densely packed. C) The protein fibers are dark red in fibrous connective tissue but are white in loose connective tissues. D) The protein fibers are white in fibrous connective tissue but are dark red in loose connective tissues.
Buttress roots help trees obtain oxygen from flooded soil. Indicate whether the statement is true or false
Blastomycosis results from
A) inhalation of spherules. B) inhalation of respiratory droplets. C) inhalation of fungal spores. D) contact with fomites. E) contact with infected sputum.