Rachel Carson's book Silent Spring deals with the
A) destruction of polar habitats caused by global warming.
B) environmental effects of pesticides.
C) effects of lynx predation on snow hare populations.
D) fate of tropical rain forests.
Answer: B
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An individual with type A blood and an individual with type B blood mate and have offspring. What blood type is not possible in their offspring?
A. Type O blood B. Type A blood C. Type B blood D. Type AB blood E. All blood types are possible
Which of the following plant secondary metabolites is used as an antimalarial drug?
A. morphine B. taxol C. genistein D. quinine E. manihotoxin
Despite advances in microscopy during the late 1800s and early 1900s, experiments using bacteria as test subjects required careful precautions to prevent contamination that would have invalidated results. What advantage did bacteria have over other, larger organisms that could be used as test subjects, such as mice and pea plants?
a. Larger organisms used as test subjects are more susceptible to injury and disease. b. Bacteria do not require specialized equipment to be stored and transported like other test subjects. c. Bacteria reproduce rapidly, allowing experiments to be conducted and repeated more often. d. Unlike mice and pea plants, bacteria can be frozen for display without cellular damage.
The results (Punnett square) may be expressed as a
What will be an ideal response?