Which one of the following is not an effect of complement activation?
A. Formation of a membrane attack complex
B. Attraction of phagocytes
C. Lysis of the cell through cytoplasmic leakage
D. Enhanced T-lymphocyte activity through thymus gland interaction
E. Production of C3b opsonin
Answer: D. Enhanced T-lymphocyte activity through thymus gland interaction
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What must be true of any organ described as vestigial?
A) It must be analogous to some feature in an ancestor. B) It must be homologous to some feature in an ancestor. C) It must be both homologous and analogous to some feature in an ancestor. D) It need be neither homologous nor analogous to some feature in an ancestor.
A condition called ____________________ results in individuals having both male and female sexual structures at different times in their lives
Fill in the blank(s) with correct word
Why is blood pressure low in fish? a. Blood must flow through sinus venosus
b. Water enters slightly deoxygenated. c. Fish are not susceptible to hypertension conditions. d. Blood does not return back to the heart.
squeezing of uterus during birth
What will be an ideal response?