Which characteristic seems to be most
uniquely correlated with metastasis?
a. loss of nuclear-cytoplasmic controls
governing cell growth and division
b. changes in adhesion proteins on membrane
surfaces
c. shrinkage of the cytoskeleton
d. increase in blood supply to the tumor
e. none of these
B
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What is the infective form of Entamoeba histolytica and Giardia intestinalis?
A) cysts B) trophozoites C) merozoites D) sporozoites
Vast ____________________ form in the interior of midlatitude continents. Fill in the blank(s) with the appropriate word(s)
The internal membranes within the chloroplast are organized into flattened sacs called ________.
Fill in the blank(s) with the appropriate word(s).
Thyroid hormones bind to _____ receptors.
-G-protein-linked -tyrosine-kinase -plasma membrane ion-channel -steroid -intracellular