There is an inherited disorder that decreases the ability of neutrophils to produce a respiratory burst. What aspect of phagocytosis will be affected by this defect?
A. attachment
B. destruction of microbes
C. phagolysosome formation
D. chemotaxis
E. ingestion
Answer: B
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The meshwork that forms the framework of a blood clot is _____
A) chymotrypsin B) fibrin C) thrombin D) prothrombin E) collagen
Certain complexes of the mitochondrial electron transport chain pump protons. Which of the following best describes the movement of protons in this situation?
A. across the outer mitochondrial membrane, from the cytoplasm to the intermembrane space B. across the outer mitochondrial membrane, from the intermembrane space to the cytoplasm C. across the inner mitochondrial membrane, from the intermembrane space to the matrix D. across the inner mitochondrial membrane, from the matrix to the intermembrane space
Which of the following is the best definition of
sympatric speciation? a. species that evolve due to geographical distance b. mechanical isolation acts to prevent speciation c. breeding behavior that prevents the organisms from breeding due to differences in their breeding time d. ecological isolation e. evolutionary change that creates two species occupying the same space
Which body form of the cnidarians is sessile?
A) Jelly B) Fish C) Medusa D) Polyp