Which of the following is (are) associated with a
teenager’s first attempt at smoking?
a. headaches
b. coughing
c. dizziness
d. nausea
e. all of these
Answer: e
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A benign tumor is usually not life-threatening
Indicate whether the statement is true or false.
How does an enzyme work to catalyze a reaction?
It supplies the energy to speed up a reaction. It lowers the energy barrier needed for reactants to achieve the transition state. It lowers the energy of activation of a reaction. It supplies the energy to speed up a reaction and lowers the energy barrier needed for reactants to achieve the transition state. It lowers the energy barrier needed for reactants to achieve the transition state or lowers the energy of activation of a reaction.
Macrophages release (bradykinin/histamine/prostaglandin) in response to microbes and thereby contribute to acute inflammation
What will be an ideal response?
The osculum of a sponge is entirely blocked by a fungal infection. Predict what will happen.
A. Water will be unable to enter the sponge. B. Choanocytes will no longer be able to function. C. Digestion will be prevented from occurring. D. The flow of water out of the sponge will decrease.