An organelle that breaks down amino acids,
fatty acids, and toxic substances is the
a. peroxisome
b. Golgi body
c. mitochondrion
d. lysosome
e. smooth endoplasmic reticulum
A
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Blood O2 levels have the greatest influence on mammalian breathing rate
Indicate whether the statement is true or false.
Smooth muscles are NOT
a. striated and voluntary. b. isolated, spindle-shaped cells. c. found in the walls of hollow structures such as blood vessels and the stomach. d. involuntary and nonstriated. e. associated with the parasympathetic nervous system “rest and digest” phase
A severe social anxiety disorder that is characterized by extreme fears and avoidance of social situations is known as _____.?
a. Loneliness b. Social phobia c. Shyness d. Social rejection e. intorversion
In DNA, phosphate groups bond to
A) other phosphate groups. B) ribose. C) adenine. D) deoxyribose. E) pyrimidine bases.