Cells are so little, so they can maximize their ratio of surface area to volume. Smaller cells have a higher ratio which allow more molecules and ions move across the cell membrane per unit of cytoplasmic volume. Cells are so small because they need to be able to get the nutrients in and the waste out quickly.
A. all magnets have two poles
Answer:
its average per average is 0.5
Explanation:
when 2 average is 1 and 1 average is0.5
Answer:
2
Explanation:
it has a total of 17 valence electrons
Answer:
By producing identical cells.
Explanation:
Mitosis:
It is a cell division in which DNA of original cell duplicate and produce identical copies The two new cells are called daughter cells having same genetic code to parent nuclei.
Importance of mitosis:
Mitosis play very important role in both unicellular and multicellular organisms.
In unicellular organisms it help in asexual reproduction. It produces identical copies of parent cell. For example in amoeba mitosis help to produce its new individual through cell division.
In case of multicelluar organisms mitosis also play an important role.
Regeneration of injured tissues:
It helps to regenerate and repair the injured cells by producing identical cells.
Growth:
It helps in the growth by producing new cells.
Genetic stability:
In mitosis chromosomes splits and produce identical copies therefore daughter nuclei are identical to their parents. It helps to maintain the genetic stability.
