B cells are primarily activated by the activities of
A) antigens.
B) antibodies.
C) helper T cells.
D) macrophages.
E) plasma cells.
Answer: C
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Atrial natriuretic peptide has the opposite effect of ADH
Indicate whether the statement is true or false.
Compare and contrast the way in which lipophilic and hydrophilic hormones affect their target cells. Include in your answer the type of receptor used, the major events promoted inside the cell after these hormone attach to their specific receptors, and the relative amount of time required to see the effect of hormone binding
What will be an ideal response?
Camels are perfectly adapted to desert conditions because
a. they can tolerate up to 30% loss of body water without any severe consequences. b. they can slow down their metabolism when dehydration causes hypertonicity of ECF. c. they have the ability to maintain plasma volume at the same homeostatic range even when the interstitial fluid becomes hypertonic. d. their body cells do not go into osmotic shock when they drink water rapidly after prolonged dehydration. e. all of these.
The tectospinal tract is part of the medial pathway, which is an indirect motor pathway.
Answer the following statement true (T) or false (F)