Eosinophils defend against protist and helminth parasites by
A. releasing cationic proteins and reactive oxygen metabolites.
B. antibody production.
C. complement activation.
D. phagocytosis.
Answer: A
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Changes in Bmp4 protein expression levels have widespread impact on developmental outcomes. It is most likely that Bmp4 is a
A. ribosomal protein. B. DNA binding protein. C. lipid synthesis enzyme. D. cytoskeletal protein.
_______ is the use of a gene sequence to synthesize a functional protein
A. Loss-of-function mutation B. Gene expression C. The human genome project D. Proteonomics E. None of these
Veins from the ____ join together and form the hepatic portal vein
a. large intestine b. liver c. pancreas d. small intestine e. stomach
What is the name of the lignified, tubelike structures that branch throughout the body of some plants, conducting water and solutes?
a. root systems b. rhizomes c. shoot systems d. vascular tissue