The structure shown by the red arrow is cell membrane.
In biology, cell membrane refers to the thin layer, which develops the external boundary of a living cell. It has three primary functions, which are as follows:
1. It comprises channels and receptors, which permits particular molecules like nutrients, ions, metabolic components, and wastes to pass between the cell and the outside environment.
2. It prevents toxic components from entering the cell.
3. They distinguish essential but incompatible metabolic procedures conducted within the cell.
<span> Mitosis involves Prophase, Metaphase, Anaphase, and Telophase.
So you have
13 + 12 + 3 + 2 = 30 cells in mitosis
and
90 + 30 = 120 cells in total
Therefore your ratio of cells in mitosis to total cells is 30 / 120 = 1 / 4. That means mitosis should take up roughly 1/4 of the total cell cycle length. Since the completely cycle takes 24 hours, mitosis would then take (1/4)*24 = 6 hours</span>
Answer:
Pollination, the transfer of pollen from flower-to-flower in angiosperms or cone -to-cone in gymnosperms, takes place through self-pollination or cross-pollination. ... The placement of male and female flowers on separate plants or different parts of the plant are also barriers to self-pollination.
Explanation:
They do, but very slowly. Mostly when growing or wind is hitting it.
