The "atomic number" of an atom is determined by the number of ________ it has
A) electrons
B) protons
C) neutrons
D) protons + neutrons
E) protons + electrons
B
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The nuclei of the thalamus that project sensory information to the primary sensory cortex of the cerebrum belong to the ________ group.
Fill in the blank(s) with the appropriate word(s).
When the thick and thin filaments slide past each other, which of the following is TRUE?
A) The Z disk to Z disk unit moves apart. B) The myofibril doubles in size. C) The muscle loses tone. D) The sarcomere gets shorter.
Which is NOT a function performed by saliva?
A. Killing bacteria B. Starch digestion C. Enabling the sense of taste D. Moistening and lubricating food for swallowing E. Emulsifying lipids
The presence of mitochondria in virtually all eukaryotic cells is attributed to the historical existence of bacterial endosymbionts which invaded ancestral eukaryotes. This explanation could be considered
a. mechanistic. b. evolutionary. c. both of these. d. neither of these.