The smallest functional unit of the sensorimotor system, consisting of a single alpha motor neuron and all of the muscle fibers it innervates.
a. Motor neuron
b. Motor unit
c. Motor neuron pool
d. Action potential
Answer: b. Motor unit
Biology & Microbiology
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This autosomal dominant genetic trait is associated with a gene on human chromosome 4 and causes a type of
dwarfing due to defective cartilage formation.
a. Duchenne muscular dystrophy b. phenylketonuria c. achondroplasia d. sickle-cell anemia e. cystic fibrosis
Biology & Microbiology
Saliva contains the enzyme __________, which
begins the process of starch digestion. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
In all cases, freezing kills microbes.
a. true b. false
Biology & Microbiology