The cellular fragments in the blood that function in blood clotting are
a. erythrocytes.
b. leukocytes.
c. platelets.
d. none of the above.
c
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Which of the following can be used in creating a vaccine?
A) attenuated bacteria B) inactivated viruses C) recombinant proteins D) attenuated bacteria, inactivated viruses, or recombinant proteins
During the process of phosphorylation, ____
a. a molecule gains a phosphate group b. a molecule synthesizes a phosphate group c. molecules become more stable d. molecules are passed to enzymes e. ADP is produced from ATP
Scientists began to question the perfection of
the Chain of Being because of a. the discovery of new organisms in new parts of the world. b. the presence of body parts with no apparent function in some organisms. c. the existence of fossil forms. d. similarities in the structures found in different forms of life. e. all of these.
In birds and reptiles, the allanotois stores nitrogenous wastes
____________________ Indicate whether the statement is true or false.