Which form of cell communication is used to relate to other cells in direct physical contact?
a. Cell junction
b. Gap junction
c. Desmosome
d. Tight junction
ANS: A
Cell junctions hold cells together and permit molecules to pass from cell to cell.
Gap junctions allow for cellular communication between cells. Neither desmosomes nor tight junctions are associated with cellular communication.
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A comprehensive sexuality education program should contain all of the following goals EXCEPT to:
(a) provide accurate information about human sexuality (b) help young people take an ab-stinence-only stand (c) help young people develop and understand their values, attitudes, and beliefs (d) help young people develop relationships and interpersonal skills
HDL-cholesterol ____
a. is referred to as the "bad" cholesterol b. should be kept below 40 mg/dL c. removes cholesterol from the body which prevents plaque from forming in the arteries d. is generally higher in men e. increases with age
According to attraction theory,
A) chemical processes determine who a person falls in love with. B) psychological processes determine who a person falls in love with. C) physical attraction actually plays no role in who a person falls in love with. D) proximity and similarities influence who a person falls in love with.
Describe some general guidelines to help teachers prepare the learning environment to promote a sense of security among students.
What will be an ideal response?