Which of the following substances tends to accumulate in tissues long term and can therefore be measured by hair analysis?
A) An inhalant
B) A heavy metal
C) A carcinogen
D) A particulate
Answer: B) A heavy metal
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__________ is a biogenic amine used in immune responses and allergic reactions
Fill in the blank with the correct word.
Large doses of certain stimulants can lead to dangerous increases in heart rates. Such a stimulant is a
A. positive chronotropic agent. B. negative chronotropic agent. C. positive inotropic agent. D. negative inotropic agent.
Which statement about sound localization is not true?
A) It requires input from both ears. B) It is difficult to discriminate sound sources in the midline. C) It requires processing at the cortical level. D) It uses time differences between sound reaching the two ears.
Fibronectin is the extracellular matrix component that provides tensile strength
Indicate whether the statement is true or false