Which of the following depicts the correct sequence of clot formation?
a. thrombin ? prothrombin ? fibrinogen ? fibrin
b. prothrombin ? thrombin ? fibrinogen ? fibrin
c. prothrombin ? thrombin ? fibrin ? fibrinogen
d. prothrombin ? thrombin ? fibrin
e. prothrombin ? thrombin ? fibrinogen ? erythrocytes
B
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Some protist cell surfaces have __________, including silica or calcium carbonate.
Fill in the blank(s) with the appropriate word(s).
Which American scientist focused on the coloration of animals that he collected from surface waters and dredged depths?
a. Alexander Agassiz b. Victor Hensen c. Sir Alistair Hardy d. Charles Wyville Thomson
If a mutated region on chromosome 15 is inherited from the father, the child will have Prader-Willi syndrome;
however, if the same mutated region is inherited from the mother, the child will have Angelman syndrome. This is an example of: a. epigenetic inheritance. b. genetic inheritance. c. gene amplification. d. eukaryotic operons. e. repressible genesIf a mutated region on chromosome 15 is inherited from the father, the child will have Prader-Willi syndrome; however, if the same mutated region is inherited from the mother, the child will have Angelman syndrome. This is an example of: a. epigenetic inheritance. b. genetic inheritance. c. gene amplification. d. eukaryotic operons. e. repressible genes
Binding of IgE to the surface of sensitized cells leads to (activation/degranulation/lysis) of the cell, releasing many inflammatory chemicals.
Fill in the blank(s) with the appropriate word(s).