The proximate causes of behavior are interactions with the environment, but behavior is ultimately shaped by _____
A) hormones
B) evolution
C) sexuality
D) pheromones
E) the nervous system
Answer: B
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Which of the following base pairs would be targeted and repaired by a mismatch repair system?
A. A -T B. C-G C. A-G D. A-G and C-G E. A-T and C-G
A(n) chemical formula shows the types and numbers of atoms in a molecule and their arrangement. Indicate whether the statement is true or false
A vaccine works by ________
A) inhibiting bacterial reproduction B) stimulating the immune system to develop lasting defenses C) killing cells infected with a virus D) preventing translation of mRNA molecules that code for disease-causing proteins
Which of the major macromolecules—lipids, carbohydrates, proteins, and nucleic acids—contain nitrogen atoms (N)?
A. Lipids and nucleic acids B. Carbohydrates and proteins C. Carbohydrates and lipids D. Nucleic acids and proteins