Answer:
To swim, they move their tails up and down, rather than back and forth as fishes do. This is because whales evolved from walking land mammals whose backbones did not naturally bend side to side, but up and down.
Explanation:
Answer:
C
Explanation:
The nitrogenous base can change
Answer: The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase (mitosis and cytokinesis), and G₀ phase.
Explanation:
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.