The inflammatory cytokines IL-1, IL-6, and TNF-? are also
A) opsonizing agents that coat foreign cells.
B) activating cytokines that stimulate Th1 cells to replicate.
C) capable of producing systemic fever by stimulating the release of prostaglandins in the brain.
D) part of the complement system that results in the destruction of foreign cells.
Answer: C
You might also like to view...
Scientists examined the diversity of primary and secondary consumers from intertidal communities in four regions of the world:
Benguela along the coast of South Africa (BEN), California along the coast of North America (CAL), Humboldt along the coast of Chile in South America (HUM), and New Zealand (NZ). The number of organisms per square meter (mean density), which is a unit that represents total biomass of primary consumers (herbivores) and secondary consumers (carnivores), is plotted for each of these four regions on the graph below. Note: Image from Blanchette et al. (2009). Trophic structure and diversity in rocky intertidal upwelling ecosystems: A comparison of community patterns across California, Chile, South Africa and New Zealand. Progress in Oceanography 83: 107-116. After examining the graph, complete the following sentence. The black portion of each bar represents the percentage of [primary / secondary] consumers, whereas the gray portion of each bar designates the percentage of [primary / secondary] consumers from the four intertidal communities. What will be an ideal response?
Each species in a community has its own __________, or way of living. Fill in the blank(s) with the appropriate word(s)
A bivalent at prophase I contains ________ chromatids
A) three B) eight C) two D) four E) one
Plant behavior is defined as response to stimuli.
Answer the following statement true (T) or false (F)