Based on your knowledge of the distribution of CO2 in the marine environment and the pattern of pressure with depth, explain why calcium carbonate deposits of coccolithophores and foraminiferans are not found below 5000 m
What will be an ideal response?
Both the concentration of CO2 and the water pressure increase with increasing depth. Since CO2 combines with water to form carbonic acid, the pH of the water decreases with depth, which results in the dissolution of calcium carbonate shells. In addition, calcium carbonate is sensitive to increases in pressure.
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The carbon cycle begins with ________.
A. anaerobic respiration B. aerobic respiration C. the conversion of carbon dioxide to methane D. carbon dioxide fixation
If two individuals with different distinct characteristics are mated, their offspring is called a _______
A. strain B. true-breeding line C. gamete D. cross E. hybrid
What is an ecological niche?
What will be an ideal response?
Fomites, food, and air serve as indirect transmission routes of pathogens.
Answer the following statement true (T) or false (F)