When you encounter a bear while hiking, which part of your nervous system triggers an increase in your heart rate and
breathing to help you run away?
a. the central nervous system
b. the sympathetic nervous system
c. the parasympathetic nervous system
d. somatic nervous system
e. cranial nerves
ANSWER: b
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Do all cells of the body express the same genes?
A. No, since they don't all need to make the same proteins B. No, since they don't contain the same DNA C. Yes, since they all contain the same DNA D. Yes, since they all make the same proteins
If a shoot’s tip breaks off, ____ moves into lateral buds and stimulates cell divisions
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Cardiac muscle has prolonged contraction due to a sodium induced-calcium released process into the cytoplasm of the cell. Cardiac cells can communicate through pore-like channels between cells. List the junction and the organelle involved in cardiac muscle contraction?
A. gap; rough ER B. gap; smooth ER C. adherens; rough ER D. adherens; golgi apparatus E. adherens; smooth ER F. gap; golgi apparatus