Humans and mice have similar genomes. in fact, researchers have found thousands of genes that exist in both mice
and humans. what can you conclude about the evolutionary relationship between mice and humans? do you think
these genetic similarities explain why mice are important test animals for human medical research?

mice and humans share virtually the same set of genes

Explanation:

Almost every gene found in one species so far has been found in a closely related form in the other. Of the approximately 4,000 genes that have been studied, less than 10 are found in one species but not in the other.

One can conclude that, if mice and humans have similar genomes, they must have a close ancestor in their phylogenetic tree. Actually, the genome between mice and humans are so similar that only few genes are found in just one of the two at a time.

Being so similar, it is very easy to understand why are mice used for human medical research, since the use of human beings is a practice considered unethical. With a very similar genome, it's possible to see how medication affects the DNA and how can a disease be fought properly. This way, mice in research are considered to be the human test.

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.