Well, the asthenosphere is located in the upper mantle. So that is how they are related.
A chromosome consists of a single, double-stranded DNA molecule. Chromatids are two molecules of double-stranded DNA joined together in the center by a centromere. Chromosomes have a thin ribbon-like structure. Chromatids have a thin and long fibrous structure.
Mitochondria are specilized structures unique to the cells of animals, plants and fungi, they serve as batteries for parts of the cell
Ribosomes are the things that process proteins in the cell for the body
Cytoplasm is the semi fluid substance of a cell that is external to the nuclear membrane and internal to the cellular membrane
Cells are a fundamental structural unit of living matter
Tissue makes the difference between cells and complete organs, they hold the shape of the cell
An organelle is a tiny cellular structure that performs specific functions within a cell.
An organ is a group of tissues with similar functions
For the first question, i think the correct answer is A. Normal cells undergo apoptosis while cancer cells don't. For the second question, The answer is option B.<span> </span><span>Cell division has two checkpoints namely, G1
checkpoint and spindle assembly checkpoint. The checkpoint which determines if
division has properly occurred is the G1 checkpoint. At this point, is a damage
in the DNA is detected or the has not reach the optimum size, the cell is
stopped in G1 and is not allowed to proceed to further process.</span>
