What colors do anthocyanins promote in fruits?
What will be an ideal response?
Red and blue colors.
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As a result of white southerners' brutal treatment of their slaves and their fear of potential slave rebellions, the South
A. formed alliances with white imperialists in Africa. B. adopted British attitudes toward the "peculiar institution." C. emancipated many slaves. D. returned to relying on wage labor and indentured servitude for its main agricultural labor force. E. developed a theory of biological racial superiority to justify slavery.
The openings in a safety net must not be larger than ______________ square inches.
A. 6 B. 12 C. 24 D. 36
A “teeter-totter” (or “see-saw” if you prefer) has a 50 lb child sitting at one end, 10 ft from the center pivot point (fulcrum). How far from the center point should a 125 lb adult sit in order to balance the teeter-totter?
a. 2.5 ft b. 4 ft c. 6.5 ft d. 10 ft
What is the power at f1 and f2 in a resonant circuit that delivers 120 W?
A) 84.8 W B) 84.8 W at f1 and 60 W at f2 C) 17 W at both frequencies D) 60 W