The time period between fertilization and implantation is approximately ________ days.
A. 14
B. 7
C. 10
D. 5
E. 21
Answer: B
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The cytoplasm consists of organelles suspended in _________
Fill in the blank(s) with correct word
During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (Palv) will
A. does not change. B. become greater than atmospheric pressure (PB), causing air to move out of his lungs. C. decrease below atmospheric pressure (PB), causing air to move out of his lungs. D. become greater than atmospheric pressure (PB), causing air to move into his lungs. E. decrease below atmospheric pressure (PB), causing air to move into his lungs.
What muscle forms the lips?
A. Orbicularis oculi muscle B. Buccinator muscle C. Orbicularis oris muscle D. Labial frenulum muscle
The __________ of a cell is the most critical factor in determining its function.
a. size b. shape c. age d. chromosome number