The presence of dark stripes in skeletal muscles is due to __________.
A. the presence of blood vessels within the muscle fibers
B. thickened membranes at the neuromuscular junctions
C. overlapping segments of actin and myosin filaments
D. alternating motor units
Answer: C
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Is it true that heavy children outgrow their baby fat, especially once they enter the growth spurt of adolescence?
a. Yes, it is true, overweight children do not become overweight adults b. No, it is not necessarily true c. Yes, but it depends upon the sex of the child d. Yes, but it depends upon the ethnicity of the child
An epitaph is a spoken remembrance delivered at a funeral to honor the deceased
Indicate whether the statement is true or false
The _____ is the component of personality developed through contact with the external world that enables us to deal with life's practical demands.
A) superego B) ego C) unconscious D) id
Rats deprived of food and water that are placed in a novel environment may choose to
a. eat and drink first. b. explore the environment first. c. be too confused to do anything. d. defecate first. e. show obvious signs of distress.