The white matter of the spinal cord contains:

a) both axons and dendrites.
b) interneurons.
c) sensory and motor nuclei.
d) bundles of axons with common origins, destinations, and functions.
e) bundles of dendrites with common origins, destinations, and functions.

option C - bundles of axons with common origins, destinations, and functions.

Explanation:

The Spinal cord has TWO regions: Grey matter and White matter.

The grey matter is composed of all the cell bodies of the neurons in the spinal cord; while the WHITE MATTER consists of nerve fibers of these cell bodies.

So, option C is the answer

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.

the answer is definitely a