The answer is D. all of the above
Answer: Nucleus
Explanation: The word hereditary refers to genes that are passed on from one generation to the next. All genetic information is stored inside the nucleus of cells in the form of DNA.
Answer:
Mitosis
Explanation:
Mitosis is the process of cell division. In this process cells are split to create exact replicas of eachother. It is why we don't grow ears on our hands when they are injured. The hand cells are replicated to create more, so it heals correctly. In the Mitosis the two resulting daughter cells always have the same number of chromosomes from the parent cell. Their role is to maintain the same number of chromosomes in each cell division constant, which allows us to grow and self-maintain our bodies.
Answer:
Although all of the options are important but the best reason is
a) Nitrogen is an essential part of biological molecules such as proteins and nucleic acids (DNA).
Explanation:
- Nitrogen is an essential component of building blocks of life that are DNA, RNA and Protein. It is also needed for the production of chlorophyll. We can say there would be no life without nitrogen.
- Air we breathe is 78% nitrogen but that is in inert form (N2) and we can't use it.
- Nitrogen cycle is the process by which nitrogen circulates into various forms of nature and it make the nitrogen useful to carryout life.
