The main components of soil are
A. air and water.
B. a mixture of soil particles of different sizes.
C. both living organisms and decaying organic material.
D. All of these are components that define soil.
Answer: D
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Which of the following components is not associated with the primary cell wall?
A) cellulose microfibrils B) hemicelluloses C) pectins D) glycoproteins E) lignins
Quality control should be performed on which two organisms to determine the validity of deoxyribonuclease (DNase) media?
a. M. atlantae and M. lacunata b. M. lacunata and M. lincolnii c. M. nonliquefaciens and M. canis d. M. osloensis and M. lacunata
What type of tissues can be transplanted from one person to another to reconstruct damaged joints?
A) cartilage B) epithelium C) bone D) blood
Parasitism is an intimate species interaction in which ______________
A. both species benefit B. both species are harmed C. one species benefits, and the other is harmed D. both species are unaffected E. one species benefits, and the other is neither harmed nor benefited