why cell division necessary? Explain four points to support your answer ?
Answers
Cell Division in Eukaryotes
Animals, plants and fungi are all eukaryotes. Technically we humans are animals, so we are eukaryotes. Eukaryotes can be composed of a single cell, or they can be multicellular like us. Animals, plants, and fungi generally follow the same process of cell division, called mitosis. In mitosis, DNA is doubled and the nucleus dissolves, freeing the DNA, which is condensed as chromosomes, to migrate to either side of the cell. Through multiple steps, called phases, the single cell divides into two. In this lesson, we'll focus on the importance of mitosis, instead of the steps. Check out another lesson on cell division to get all the details on the process.
Importance And Problems In Eukaryotes
In multicellular organisms like humans, mitosis is used for growth, development, and repair. Through multiple divisions and cues from their environment they change, or differentiate, into all the different types of cells we need in our body, like brain cells or heart cells.