The brain
a. consists of 90% interneurons and 10% glial cells.
b. can perform anaerobic metabolism when oxygen supplies are low.
c. normally uses only glucose as a fuel for energy production.
d. two of these answers.
e. all of these answers.
C
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The ____________________ vertebra is called the axis.
Fill in the blank(s) with the appropriate word(s).
Which type of gland accumulates its secretion in the cytoplasm of the cell, the cell then ruptures and becomes part of the secretion?
A. Apocrine B. Holocrine C. Merocrine
The almost identical cells produced by cleavage divisions are called
A) morulas. B) blastomeres. C) trophoblasts. D) blastocoeles. E) ova.
Explain how these statements differ, and identify which one(s) is/are correct. Explain what is wrong with each incorrect statement. Explain when chemical reactions continue and when they stop.
A. A chemical reaction proceeds until the enzyme molecules are all consumed. B. A chemical reaction proceeds until the substrate molecules are all consumed. C. A chemical reaction proceeds until equilibrium is established. D. A chemical reaction proceeds until all the product molecules are removed.