Control systems in the cell can induce cell suicide, or apoptosis, in cells with excessive DNA damage
a. True
b. False
Indicate whether the statement is true or false
True
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Based on the label above, if a person consumes 2000 calories daily to maintain body weight, what percentage of the RDA for iron would this person receive from a serving of apple juice?
A) 20% B) less than 20% C) more than 20%
Stomata close when ____ guard cells and they become ____
a. active transport pumps H+ into; turgid b. active transport of H+ stops in; flaccid c. active transport pumps H+ out of; turgid d. active transport pumps H+ into; flaccid e. active transport of H+ stops in; turgid
In the flower diagram shown above, the item labeled "2" is a(n)
a. sepal. b. anther. c. receptacle. d. petal. e. ovule.
Which of the following virulence factors directly contributes to severe inflammation?
A. coagulase B. lipid A C. hyaluronidase D. kinase E. collagenase