The correct answer is: Induction, because this could be easily changed by changing the cell's environment.
Cell differentiation (process by which cell becomes specialized) can be under the influence of many factors:
• Cytoplasmic influence because cytoplasm can influence and control the behaviour of nuclear genes.
• Embryonic induction-changing the cell environment
For example: if cells from one region of the embryo are transplanted to some other region that transplant will most likely differentiate according to the chemical regulators of the surrounding cells.
• Proteins present in a cell influences its differentiation
• Cell-Cell interactions via cell-cell adhesion and signalling molecules.
Answer:
Nitrogen is the most commonly limiting nutrient in plants. Legumes use nitrogen fixing bacteria, specifically symbiotic rhizobia bacteria, within their root nodules to counter the limitation. Rhizobia bacteria convert nitrogen gas (N2) to ammonia (NH3) in a process called nitrogen fixation.
True, your legs are examples of levers.
Cellulose is a straight chain polysaccharide which is made up of glucose molecules that are joined together by beta 1,4 glycosidic bonds. Cellulose is the principal structural material of plants and plants use it to build strong structures. For instances, the rigid cell wall of plant cells is made up of cellulose.
Thus, the correct option is D.
