12. In a family, the father has a disease and the mom is normal. They have 2 daughters and 2 sons. The 2 daughters are normal, but the sons both have the disease also. Using the information given, this disease is likely to be classified as:

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

sex cells are usually half's then they find another half and make a fertilize egg

acceleration = 18/3 = 6 m/s per second.

hope i

-lavira: )