Figure 28.2
?
The following question refers to the accompanying figure illustrating soil horizons.
Which soil horizon has no organic matter or weathered rock?
A. O Horizon
B. A Horizon
C. B Horizon
D. C Horizon
E. Bedrock
Answer: E
You might also like to view...
Which of the following is not a fermentation product?
A) ethanol B) lactate C) propionate D) dihydroxyacetone E) butyrate
With one exception, species of the genus Haemophilus require which of the following media ingredients for in vitro growth?
a. Vitamin K and hemin b. Hemin and nicotine adenine dinucleotide (NAD) c. Vitamin K and NAD d. Hemin and cysteine
Homeotic genes generally control
a. X chromosome inactivation. b. the formation of a specific body part. c. hormone synthesis. d. dosage compensation. e. DNA methylation.
Triclosan, a chemical in most "antibacterial" soaps,
A) is considered to be the "miracle antiseptic" in household use. B) has led increased resistance of microbes to other antibacterial agents. C) is superior to regular soap and water. D) kills fungi and viruses as well as bacteria.