Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid. What is the molar concentration of [H3O+] in a cola that has a pH of 3.120?
a) 7.58 × 10?4
b) 7.59 × 10?4
c) 7.6 × 10?4
d) 3.120 × 10?3
e) 0.494
f) 1.318 × 103
Answer: b) 7.59 × 10?4
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Which of the following statements is true regarding angiosperms? Select all correct choices
A. They have higher rates of photosynthesis compared to other plants. B. They have the capacity to transport more water compared to other plants. C. They can take in more CO2 compared to other plants. D. They have lower rates of photosynthesis compared to other plants. E. They can take in less CO2 compared to other plants.
Nitrification
a. converts ammonium into nitrates. b. reduces nitrates to nitrites. c. converts nitrogenous compounds into free nitrogen. d. converts atmospheric nitrogen to ammonia. e. reduces ammonia to ammonium
All human DNA is nearly identical. Only about ____ of the DNA sequences of two people will differ. Even so, this difference still translates to roughly ______ base-pair differences.
A) 1 percent; 3 million B) 0.1 percent; 3 million C) 1 percent; 10 million D) 0.1 percent; 100 E) 0.1 percent; 1 million
T or F? Kinesiology is the study of human motion.
What will be an ideal response?