What class is this if you can tell me I tried to look it up but I don’t know
DNA is made of a double helix of two complementary strands. When replicating, these strands seperate. Each strand of the original DNA then acts as a template for the production of it's counterpart, which is referred to as semiconservative replication.
Biologists Schleiden and Schwann would state that all cells come from other cells, the smallest living unit is the cell and all living things are made up of a cell or cells. The correct option among all the options that are given in the question is the last option or the fourth option. I hope the answer has helped you.
Http://www.ema.co.tt/docs/events/iyb/types%20of%20biodiversity.pdf