Proteins that extend from the cytoskeleton within the cell, through the plasma membrane, and into the extracellular matrix are ________.
Fill in the blank(s) with the appropriate word(s).
integrin proteins
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Trace fossils include all of the following except:
A. the mineralized skull of an ancient mammal. B. the trail left by a crawling worm. C. the impression of a bird feather. D. a dinosaur footprint. E. the burrow of an extinct crab.
What happens during diastole?
A. The heart muscles contract, moving blood to ventricules. B. The heart muscles pause, allowing both atria to empty. C. The heart muscles relax, allowing blood to flow into all chambers of the heart. D. The heart muscles contract, moving blood to atria.
What type of tissue is characterized by adherence to a basement membrane on one side and a free
surface on the opposite? a. connective b. muscle c. nervous d. epithelial e. adipose
What antibody class is the most common class of antibody produced in the primary response to an antigen?
A) IgM B) IgE C) IgG D) IgD E) IgA