RIO SALADO BIO 201 EXAM 3 -HUMAN ANATOMY
AND PHYSIOLOGY I |ACTUAL QUESTIONS AND
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
You conduct an experiment on twenty 18-year-old male subjects to see how various
intensities of exercise influence heart rate. Which is/are a dependent variable?
A) More than one answer is correct.
B) intensity of exercise
C) sex of subjects
D) heart rate
E) age of subjects
CORRECT ANSWER
D) heart rate
Question 2
The following is a list of several levels of organization that make up the human body.
1. tissue
2. cell
3. organ
4. molecule
5. organism
6. organ system
The correct order from the smallest to the largest is
1
,Question 3
A) 4, 2, 1, 6, 3, 5.
B) 4, 2, 3, 1, 6, 5.
C) 6, 4, 5, 2, 3, 1.
D) 4, 2, 1, 3, 6, 5.
E) 2, 4, 1, 3, 6, 5.
CORRECT ANSWER
D) 4, 2, 1, 3, 6, 5.
Question 4
The human body is best described as always being in a state of equilibrium such that all
body compartments are identical.
A) True
B) False
CORRECT ANSWER
B) False
Question 5
Homeostasis is the ability of the body to
prevent excessive blood loss.
A) prevent excessive blood loss.
B) quickly restore changed conditions to normal.
2
,C) prevent the internal environment from changing.
D) ignore external stimuli to remain in a state of rest.
E) prevent the external environment from changing.
CORRECT ANSWER
B) quickly restore changed conditions to normal.
Question 6
Which are used to keep our systems at or near their setpoints?
A) open control loops
B) feedforward control loop
C) positive feedback loops
D) response loops
E) negative feedback loops
CORRECT ANSWER
E) negative feedback loops
Question 7
________ are kept within normal range by physiological control mechanisms which are
used if the variable strays too far from its ________.
Question 8
A) Independent variables, steady state
B) Dependent variables, lowest value
C) Regulated variables, setpoint
3
, D) Setpoints, regulated variable
E) Steady state values, integrating center
CORRECT ANSWER
C) Regulated variables, setpoint
Question 9
You go outside on a very cold day and you start to shiver because you do not have on the
proper clothing. The act of shivering would represent what step in a response loop?
A) variable
B) sensor
C) response
D) integrating center
E) setpoint
CORRECT ANSWER
C) response
Question 10
Vasodilation of blood vessels supplying muscles in response to increased carbon dioxide
during exercise is an example of
A) local control.
B) neural control.
C) long-distance control.
D) reflex control.
E) hormonal control.
4
AND PHYSIOLOGY I |ACTUAL QUESTIONS AND
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
You conduct an experiment on twenty 18-year-old male subjects to see how various
intensities of exercise influence heart rate. Which is/are a dependent variable?
A) More than one answer is correct.
B) intensity of exercise
C) sex of subjects
D) heart rate
E) age of subjects
CORRECT ANSWER
D) heart rate
Question 2
The following is a list of several levels of organization that make up the human body.
1. tissue
2. cell
3. organ
4. molecule
5. organism
6. organ system
The correct order from the smallest to the largest is
1
,Question 3
A) 4, 2, 1, 6, 3, 5.
B) 4, 2, 3, 1, 6, 5.
C) 6, 4, 5, 2, 3, 1.
D) 4, 2, 1, 3, 6, 5.
E) 2, 4, 1, 3, 6, 5.
CORRECT ANSWER
D) 4, 2, 1, 3, 6, 5.
Question 4
The human body is best described as always being in a state of equilibrium such that all
body compartments are identical.
A) True
B) False
CORRECT ANSWER
B) False
Question 5
Homeostasis is the ability of the body to
prevent excessive blood loss.
A) prevent excessive blood loss.
B) quickly restore changed conditions to normal.
2
,C) prevent the internal environment from changing.
D) ignore external stimuli to remain in a state of rest.
E) prevent the external environment from changing.
CORRECT ANSWER
B) quickly restore changed conditions to normal.
Question 6
Which are used to keep our systems at or near their setpoints?
A) open control loops
B) feedforward control loop
C) positive feedback loops
D) response loops
E) negative feedback loops
CORRECT ANSWER
E) negative feedback loops
Question 7
________ are kept within normal range by physiological control mechanisms which are
used if the variable strays too far from its ________.
Question 8
A) Independent variables, steady state
B) Dependent variables, lowest value
C) Regulated variables, setpoint
3
, D) Setpoints, regulated variable
E) Steady state values, integrating center
CORRECT ANSWER
C) Regulated variables, setpoint
Question 9
You go outside on a very cold day and you start to shiver because you do not have on the
proper clothing. The act of shivering would represent what step in a response loop?
A) variable
B) sensor
C) response
D) integrating center
E) setpoint
CORRECT ANSWER
C) response
Question 10
Vasodilation of blood vessels supplying muscles in response to increased carbon dioxide
during exercise is an example of
A) local control.
B) neural control.
C) long-distance control.
D) reflex control.
E) hormonal control.
4
