The normal microbiota is part of the _______ line of defense.
A. first
B. second
C. third
D. fourth
A. first
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Which of the following is a common benefit of a microbe-plant symbiosis?
A) increased nutrient availability B) decreased pathogen colonization C) increased affinity for carbon dioxide D) increased nutrient availability and decreased pathogen colonization
Organisms that can grow without oxygen are called ______.
a. anoxyic b. phototrophs c. anaerobes d. cyanobacteria
Explain the relationship between nucleic acids and proteins. How would a change to the DNA ultimately affect proteins?
What will be an ideal response?
Which of the following is true of allosteric enzymes?
A) Their activity can be increased by competitive inhibitors. B) Their activity can be reduced when the product binds the enzyme. C) Their coenzyme is removed when the product binds the enzyme. D) Their activity can be reduced when the substrate binds the enzyme.