Which of the following is/are true regarding center of mass?
A. in a spherical ball with evenly distributed mass, it is in the exact center
B. it is the point around which a body's weight is equally balanced regardless of body position
C. it may be located outside an object or body
D. both A and B
E. all of the above
E. all of the above
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Label D represents which of the following structures?
A) blastocoele
B) blastocyst
C) trophoblast
D) developing villi
E) chorion
When peripheral chemoreceptors detect a(n) __________ (decrease or increase?) in plasma H+, they stimulate the respiratory center to __________ (increase or decrease?) the breathing rate
Fill in the blank(s) with correct word
Where would a needle be inserted in order to perform a spinal tap?
A) dura mater B) epidural space C) subdural space D) subarachnoid space
Which of the following effects of exercise elevate the body temperature?
A) elevated metabolism from the oxygen debt B) an increased rate of chemical reactions C) skeletal muscle contractions D) all of the above