Lamarck's theory of inheritance of acquired characteristics was based on ____
A)the discovery of DNA
B)the discovery of genes
C)the discovery of mitochondria
D)observation and interpretation
E)experiments
D
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What type of cleavage is illustrated in this figure? 
A. three nonperpendicular directions B. two nonperpendicular directions C. three perpendicular directions D. one direction E. two perpendicular directions
The major source region for January anticyclones in North America is in
A) northwest Canada. B) the Pacific Northwest. C) northeast Canada. D) the Southwest. E) Gulf of Mexico.
Which of the following countries is hardest hit by the "digital divide"?
A) Canada B) Nigeria C) Italy D) Japan E) Australia
Why is it difficult for tobacco farmers to convert to farming other crop types?
A) Tobacco is a labor intensive crop B) Tobacco farms are small C) Tobacco tends to make the soil unusable for other crops. D) Both A and B E) Both B and C