Certain cells that line the stomach synthesize a digestive enzyme and secrete it into the stomach. Which of the following processes could be responsible for its secretion?
A) endocytosis
B) exocytosis
C) phagocytosis
D) passive transport
B
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Based on the fact that CO2 limits photosynthesis in some current environments, what might you conclude about the evolution of photosynthesis?
A. Photosynthesis evolved when environmental concentrations of CO2 were low. B. Photosynthesis evolved when environmental concentrations of CO2 were high. C. CO2 levels likely did not have a bearing on the evolution of photosynthesis. D. Photosynthesis evolved in a greenhouse.
Which term refers to cell change and damage that occurs during the viral replication cycle?
a. cytopathic effects b. viral envelopment c. attenuation d. lysis
List the stages of interphase and the events that occur during each of these stages.
What will be an ideal response?
Describe the structure and function of the DNA molecule.
What will be an ideal response?