Corals are cnidaria which makes coral reef which is of calcium carbonate and act as eco system in deep marine water !
so the most appropriate answer is C !
1. anaphasespindle fibers pull back to the centromeres separating the sister chromatids, 2 sets of chromosomes are present
2. interphasecell grows, DNA is copies, organelles replicate
3. metaphasechromosomes line up in the middle of the cell on spindle fibers
4. telophasenuclear envelope forms, chromosomes unwind, spindle fibers dissolve
5. prophase chromosomes are visible, nuclear envelope breaks down, spindle fibers from between centrosomes
For area under the graph the distance - time is non applicable
some bacteria called nitrogen fixers convert atmospheric nitrogen to ammonia
