Only about ________ of the sunlight falling on plant leaves is captured by photosynthesis.
A. 50%
B. 1%
C. 25%
D. 10%
Answer: B
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Watson and Crick used evidence from several studies to determine the structure of DNA. What conclusion were they able to draw from Rosalind Franklin's X-ray diffraction data, specifically?
A) DNA consists of four types of nucleotide bases: A, T, C, and G. B) DNA nucleotides form complementary base pairs. C) Adenine pairs with thymine and cytosine pairs with guanine when they are on opposite DNA strands. D) DNA is a duplex, with two strands forming a double helix. E) The DNA strands are antiparallel, and the strands are held together by hydrogen bonds.
Which of the following exist as RNA surrounded by a protein coat?
A. Retrovirus B. prion C. Prokaryote D. Spirochete E. streptococcus
Epithelial cells are specialized for all the following functions EXCEPT
A. protection B. contraction C. secretion D. filtration
Fill in the blanks to complete the following statements. ?The antibiotic of choice for bacterial pharyngitis is __________________
Fill in the blank(s) with correct word