The instrument used to record the electrical events of the heart is an ________
A) EOG
B) EEG
C) EMG
D) ECG
D
Explanation:
A) An EOG is used to record the electrical activity of the muscles of the eye.
B) An EEG is used to record the electrical activity of the brain.
C) An EMG is used to record the electrical activity of skeletal muscle.
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A frog is an example of a
a. terrapin c. amphibian b. reptile d. avian
An ion that is a necessary component of high-energy compounds and nucleic acids and a structural component of bone is the ________ ion
A) chloride B) sulfate C) phosphate D) bicarbonate E) iodide
Given the information in Figure 29.1, what is the phenotype ratio (assuming C is dominant and there is no incomplete dominance)?
A) 1:1:1:1 B) 1:2:1 C) 1:3 D) 4:0
What is the function of the middle ear?
A. To guide the sound wave into the auditory canal B. To transfer the sound wave to the tympanic membrane C. To separate the outer ear and inner ear D. To amplify the vibration of the tympanic membrane