Why is hemophilia considered to be a sex-linked trait?
it is carried on the x chromosome.
it is carried on the autosomes.
it is carried on the y chromosome.

It is carried on the X chromosome.

Taking this test on Gradpoint, hope I helped.

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.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.