I believe that the answer should be D. Cell cycle.
Observation can be called the process of gathering data. Data, is factual that has scientific evidence to proof.
I think it is manufacturing,sorry if wrong
Answer: E. hypothesis
Explanation:
A hypothesis can be define as the predicted statement for a particular event or phenomena which includes some facts based on limited evidences obtain from observations. A hypothesis can be tested on the basis of experimental procedures.
The given statement is hypothesis, this is because of the fact that it is based on observation of clean and polluted water influencing the life of fish. This statement can be proved true or false based on experimental procedures.
Mitosis is the process describing the division of a cell into two genetically identical cells. It has 5 stages: interphase, prophase, metaphase, anaphase, telophase. During anaphase, the cell is elongated and the pair of chromosomes is drawn to the opposite sites of the cells, getting ready for the cell division that occurs at the next stage. Therefore, at anaphase the DNA is duplicated and the cells of the Tasmanian devil would have 28 chromosomes at this stage.