The collection of a substance in an organism's body tissues that becomes more concentrated in organisms higher on a particular food chain is called
a) concentration
b) smog
c) pollution
d) biological magnification
Ans: d) biological magnification
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The mechanism of muscle contraction was first studied in ____ muscle using high-resolution ____ microscopy
a. skeletal; light b. smooth; light c. skeletal; electron d. smooth; electron e. cardiac; electron
Overhunting of the northern elephant seals left only twenty individuals, from which the modern population arose. As a
result, each animal is most likely ____ for most alleles.
a. recessive b. dominant c. homozygous d. heterozygous e. co-dominant
The process of becoming a zombie involves reanimating an organism from death.
a. true b. false
Which of the following describes fermentation forming lactate, ethanol, and CO2?
a. mixed acid b. acetogenic c. heterolactic d. homolactic