HIV, the virus which causes AIDS, primarily attacks which part of the immune system?
A) B cells
B) dendritic cells
C) macrophages
D) T cells
D
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Describe the differences between matter and energy
What will be an ideal response?
Nitrogen is the most common gas in the atmosphere.
Answer the following statement true (T) or false (F)
What is a tablemount?
a) A seamount that grew to just below sea level, experienced wave erosion, and is now inactive. b) A seamount that grew above sea level, experienced wave erosion, and is now active. c) A seamount that grew to just below sea level, experienced wave erosion, and is now active. d) A seamount that grew above sea level, experienced wave erosion, and is now inactive.
A swamp (wetland) is a good example of how shifting cultural values can reinvision an "unused feature" as a resource
Indicate whether the statement is true or false.