The main component of insect chitin is
A) Polysaccharide.
B) Protein.
C) Lipid.
D) Nucleic acid.
Answer: A
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Which of the following choices lists the order of stages of cellular respiration in proper order?
A. Glycolysis, intermediate stage, citric acid cycle, and the electron transport system B. Citric acid cycle, glycolysis, intermediate stage, and the electron transport system C. Glycolysis, citric acid cycle, intermediate stage, and the electron transport system D. Glycolysis, intermediate stage, electron transport system, and the citric acid cycle E. Citric acid cycle, electron transport chain, intermediate stage, and glycolysis
Which of the following processes is not considered an example of mechanical digestion?
a. the teeth chewing food b. the stomach churning food c. amylase acting on food in the mouth d. bile acting on food in the small intestine
The utricle is
a. an otolith organ. b. activated when a person bends the head to look down at the ground. c. activated when a person starts to walk. d. two of these answers. e. all of these answers.
Neurons are classified by which of the following?
a. Size and location b. Structure and size c. Structure and function d. Function and location