nitrogen fixation back into nitrogen gas process
What will be an ideal response?
1. ammonification- converts nitrogenous waste from living animals or from the remains of dead animals into ammonium (NH4+ ) by certain bacteria and fungi.
2.nitrification-this ammonium is then converted to nitrites (NO2?) by nitrifying bacteria, such as Nitrosomonas, through nitrification
3.denitrification-whereby bacteria, such as Pseudomonas and Clostridium, convert the nitrates into nitrogen gas, thus allowing it to re-enter the atmosphere.
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__________ infections are always caused by physicians or other healthcare workers.
A) iatrogenic B) community-acquired C) nosocomial D) contagious
Which is NOT TRUE about chemoautotrophs?
a. They were the first cells on earth. b. They thrived on oxygen. c. They used methane as a carbon source. d. Many became extinct with the arrival of photoautotrophs. e. They did not use solar energy to feed themselves.
Which proteins participate in DNA bending and contribute to folding and condensation of the chromosome?
What will be an ideal response?
In "The Disembodied Lady," neurologist Oliver Sacks tells the story of a patient who suffered a catastrophic loss of sensory function. She said, "I feel my body is blind and deaf to itself... It has no sense of itself." The patient's nerve damage was strikingly specific. What single type of neuron most likely suffered damage?
A. rods and cones B. gustatory receptors C. olfactory receptors D. proprioceptors E. Meissner corpuscles