Which of the following blood cell functions primarily as phagocytes
a. Eosinophils
b. basophils
c. lymphocytes
d. neutrophils
Ans: d. neutrophils
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The "Anthropocene Period":
A. is so named to reflect the impact of humans on the planet. B. is Latin for "modern era." C. refers specifically to the period of time following the industrial revolution. D. is so named to reflect increasing global surface temperatures. E. refers to the period when the earliest primate ancestors appeared in the fossil record.
Birds have
A. a backcurrent lung. B. an air sac lung. C. a parabronchial lung. D. a negative pressure lung. E. a tracheal lung.
The small, non-protein molecules that can be readily separated from an enzyme and are responsible for transfer of atoms from one molecule to another are referred to as
A. vitamins. B. enzymes. C. hormones. D. coenzymes.
The structure enabling depolarization to travel deep into the muscle fiber is the ______.
A. sarcomere B. motor unit C. T tubule D. sarcoplasmic reticulum