Takes ammonia and converts it to nitrite ions. 2nd step of nitrogen cycle is called

Nitrification.

Explanation:

Nitrification is the second step of nitrogen cycle in which the ammonia is converted into nitrates with the help of bacteria is called nitrifying bacteria. In the first step, biological nitrogen fixing bacteria fixes atmospheric nitrogen into ammonia. This process is known as ammonification. Due to this fixation, the plants is able to use the nitrogen for making amino acids in the body. So the first step is ammonification and the second step is nitrification.

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.