The figure above represents
a. a cephalopod beak.
b. a chiton’s “tongue.”
c. a bivalve penis.
d. a squid claw.
e. none of these.
Answer: b
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Choose the pencil that has the lowest potential energy.
A. A pencil hitting the ground after falling from your desk B. A pencil on your desk C. A pencil falling from your desk D. A pencil laying on the ground
The genetic code is a ________ codon.
Fill in the blank(s) with the appropriate word(s).
Which structure releases aldosterone?
Select one: a. glomerular (Bowman's) capsule b. proximal convoluted tubule cells c. loop of the nephron (loop of Henle) d. collecting tubule e. adrenal cortex
Use the accompanying figure to answer the following question. The bands in the ladder are in 10-base increments, starting with 10 bases at the bottom and going to 70 bases at the top. Approximately how many bases are in the DNA molecule that the arrow is
pointing to?
A) 30 bases
B) 36 bases
C) 40 bases
D) 44 bases