A new flower species has a unique photosynthetic pigment. The leaves of this plant appear to be blue-green. What wavelengths of visible light does this pigment reflect?
A. red and yellow
B. blue and violet
C. green and blue
D. red, yellow, and green
E. green, red, and violet
A. red and yellow
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Which of the following organs have epithelial
lined passageways and ducts that are affected in cystic fibrosis:
a. lungs b. liver c. pancreas d. intestines e. all of these organs are affected
Selection pressures acting on a population may favor
a. individuals at the left end of the range of variation. b. individuals at the right end of the range. c. extreme individuals at both ends of the range. d. the intermediate individuals within the range. e. all of these.
Selective toxicity should be avoided when developing a new antimicrobial drug.
Answer the following statement true (T) or false (F)
A product of glycolysis is ________
A) lactic acid B) ethyl alcohol C) O2 D) pyruvic acid