MHC proteins
A) control antibody gene expression.
B) help white blood cells distinguish "self" from "non-self."
C) cause cancer.
D) are released by T cells during an infection to kill virus-infected cells.
B
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Answer the following statement(s) true (T) or false (F)
1. The pneumonia caused by the influenza virus results from the accumulation of fluid and cell debris in the lungs. This occurs during the lysogenic life cycle of the virus. 2. Bacteria typically use binary fission, but under special circumstances sexual reproduction is possible via horizontal gene transfer. 3. Drupes have multiple seeds and fused carpels. 4. Germination inhibitors that must be digested by acids in order to be removed help to ensure the seed will be dispersed with some fertilizer. 5. As the endosperm matures it swells and eventually becomes the fruit.
Pseudopods are structures that are primarily found in:
a. silicoflagellates. b. amoeboid protozoans. c. coccolithophores. d. diatoms. e. dinoflagellates.
The “tunic” of tunicate refers to
a. a body covering. b. the type of food-gathering mechanism. c. muscle arrangements in the larva. d. the immature stage of a true fish. e. organ rotation during reorganization.
The ________ cycle normally has no atmospheric component
Fill in the blank(s) with correct word