Only about ________ of the sunlight falling on plant leaves is captured by photosynthesis.

A. 50%
B. 1%
C. 25%
D. 10%


Answer: B

Biology & Microbiology

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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.

Biology & Microbiology

Which of the following exist as RNA surrounded by a protein coat?

A. Retrovirus B. prion C. Prokaryote D. Spirochete E. streptococcus

Biology & Microbiology

Epithelial cells are specialized for all the following functions EXCEPT

A. protection B. contraction C. secretion D. filtration

Biology & Microbiology

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

Biology & Microbiology