Answer:
Parenchyma cells are the abundant cells that make up ground tissues in plants.They are flat at point of contact.they have thin primary cell walls and have large vacuoles for storage of food.In leaves they are called mesophyll and are sites of photosynthesis.In other parts they are sites for respiration and protein synthesis.
Sclerenchyma cells are cells with rigid secondary cell walls.Their cell walls are hardened with lignin which is the main chemical component of wood.Mature sclerenchyma cells cannot elongate and most of them are dead.
Explanation:
1st one 2nd one and i believe 3rd one
Answer:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
the rock record provides evidence of past human civilizations
When we divide the surface area by the volume, we get the surface area to volume ratio:
surface to volume ratio = surface area/volume = 32/8 = 4This ratio indicates how much exposure the cell has to the environment which is important in cells in regard to the transport, absorption, or secretion of materials.
