Name three reasons why inflammation can be protective and useful?
What will be an ideal response?
1. Recruit immune defenses to the injured tissue. 2. Limit the spread of infectious agents. 3. Deliver oxygen, nutrients, and chemical factors essential for tissue recovery.
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Which one of the following is the outer layer of gray matter found in the cerebrum?
A. cerebral cortex B. central sulcus C. limbic system D. temporal lobe
The Krebs cycle runs
A. three times for each glucose, to power the electron transport proteins in hydrogen transport. B. twice, once for each acetyl CoA that was formed from the glucose molecule. C. 12 times for each glucose, because all of these processes are associated with the Krebs cycle. D. once for each glucose consumed, to rearrange the molecule prior to ADP production. E. six times for each glucose, because each carbon pulled from the original molecule will power the Krebs cycle.
In the geological time scale, which of the following eras is miss-matched with the organisms?
A. Precambrian -- protists evolve B. Mesozoic -- appearance and spread of flowering plants C. Paleozoic -- forests of cycads D. Cenozoic -- humans
Visual accommodation involves the ability to ____.
A. change the sensitivity of the rods and cones by means of neurotransmitters B. change the position of the retina C. change the thickness of the lens by contracting or relaxing certain muscles D. protect the eyeball from foreign matter E. prevent eye strain