Answer:
Due to different climatic condition.
Explanation:
Altitudinal zonation makes possible to grow many different types of crops because of different climatic condition of the region. Each and every plant has different climatic and environmental requirements due to which different plants can be grown on different places where environment is suitable. Some plants needs cool environment so they can be grown on high altitude while some needs warm temperature which can be grown on lower altitudes near the equator.
The phospholipid no later regulates the amount of water that travels in and out of the cell.
A) is incorrect because this happens in metaphase.
B) is incorrect because telophase II is meant to create FOUR cells.
C) is correct. While the wording of the "daughter cells" from B and the "nuclei" may throw you off, the nuclear envelope forms around the nuclei before they actually split to form separate cells for cytokinesis.

Air pollution has become an extremely serious problem. Air pollutants affect both plants and animals. Under polluted conditions, plants develop different physiological, morphological and anatomical changes. Pollutants cause damage to cuticular waxes by which then they enter the leaves through stomata. This further leads to injury to plants which can be either acute or chronic. Changes in stomata due to air pollutants which seem to be small can be of great consequence with respect to survival of the plant during stress. These effects can further lead to disturbing the water balance of leaf or whole plant. Respiration also gets affected because of the exposure of plants to air pollutants. The present paper deals with the effect of air pollutants on stomata as well as on respiration leading to affect gaseous exchange.


The most chloroplasts are found in the leaves due to the fact the chloroplast are not need in the roots as they are underground and have no light