The largest diameter blood vessels (e.g., the aorta) are:
A) elastic arteries
B) muscular arteries
C) capillaries
D) arterioles
Ans: A) elastic arteries
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You conduct an experiment on twenty 18-year-old male subjects to see how various intensities of exercise influence heart rate. Which of the following is/are considered an independent variable?
A) heart rate B) age of subjects C) intensity of exercise D) sex of subjects E) More than one of the answers is correct.
The principal functions of the __________ system include the absorption of oxygen, discharge of carbon dioxide, maintaining the acid-base balance, and speech.
Fill in the blank(s) with the appropriate word(s).
Flower essences work.
A) by supplying specific nutrition. B) on an energetic/vibrational level. C) as an adaptogen. D) as an adrenal tonic.
Joints of the upper limb are more mobile, whereas joints of the lower limb are more stable.
Answer the following statement true (T) or false (F)