Which element is considered a micronutrient needed by plants?
A. Carbon
B. Hydrogen
C. Nitrogen
D. Magnesium
E. Zinc
Answer: E
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Match the infectious agent on the left with the appropriate cancer type on the right.
A) Burkitt's lymphoma B) cervical cancer C) bladder cancer D) liver cancer E) stomach cancer 1) Epstein-Barr virus 2) hepatitis B virus 3) human papilloma virus 4) Helicobacter pylori 5) parasitic flatworms
How are the C4 and CAM pathways similar? How are they different?
What will be an ideal response?
A thymine dimer affects the DNA molecule by
a. breaking it apart. b. distorting its structure. c. preventing effective DNA repair. d. interfering with base pairing. e. both b and c.
The continuous, low-level extinction rate of species is referred to as:
a. minimal extinction. b. mass extinction. c. background extinction. d. temporal extinction. e. selective extinction