Ants following a trail to the sugar bowl in your kitchen are doing so because of
A. an innate knowledge of where the sugar can be found.
B. a dance done by an ant in the anthill.
C. chance alone.
D. operant conditioning.
E. a pheromone pathway laid down by previous ants.
Answer: E
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The bonding of two amino acid molecules to form a larger molecule requires
a) both the release of a carbon dioxide molecule and the addition of a nitrogen atom. b) the release of a carbon dioxide molecule. c) the release of a water molecule. d) the addition of a water molecule. e) the addition of a nitrogen atom.
Choose the mRNA sequence that is complementary to the gene sequence GGACTTACG.
A. CCTGAATGC B. AACUGGCUA C. GGTCAATCG D. CCUGAAUGC
Capillary action is one of the forces that aids water's upward movement in plants. The narrower the diameter of the tube, the farther the water column will rise. Capillary action is a result of water molecules
A. being associated with hydrophobic molecules, which can result in upward movement. B. having an adhesive force, which allows them to attach to the vessel walls. C. producing sufficient surface tension to overcome the pull of gravity. D. storing heat and thus moving faster because of heat of vaporization. E. having a strong cohesive force and attaching to the surrounding vessel walls.
What molecule indirectly provides the energy for translation?
A. ATP B. GTP C. ADP D. GMP E. GDP