Which cellular organelle contains a double membrane with pores?
a. nucleus
b. mitochondria
c. endoplasmic reticulum
d. both a and c
Answer: d. both a and c
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The most important metabolic effect of ________ is protection against ________, crucial to surviving significant stress.
Fill in the blank(s) with the appropriate word(s).
What is the importance of the secondary curves of the spine?
A) The secondary curves allow us to balance our body weight to permit an upright posture. B) The secondary curves surround the lungs and expand allowing us to breathe. C) The secondary curves accommodate the thoracic organs. D) The secondary curves accommodates the abdominopelvic organs. E) The secondary curves enclose the spinal cord.
The two major divisions of the skeleton are axial and __________.
Fill in the blank(s) with the appropriate word(s).
A _____ bone is the traditional model for overall bone structure.
a. flat b. long c. short