Green roof do have several advantages over ordinary roofs as follows.
<h3><u>Explanation:</u></h3>
Green roof are defined as the roof over which a thin layer of soil is placed to grow a thin layer of grass or other plants. This have several advantages as follows:
A. Green roof help in reducing water logging in roofs, thereby reducing the dampening of the concrete, and increasing the longevity of the roof.
B. It is actually energy saving, by reducing the summer temperatures by evaporation and transpiration. It also maintains a warm room temperature in winter by reducing the heat loss.
C. It's also actually low in budget. Its initial cost is more than ordinary roof, but the maintenance cost is very low, if not nill.
D. Its a place for recreational activities. Greenery in urban areas are very rare sight, which can be met through this project.
E. Green roofs provide a chance for urban agriculture.
During the initial exposure to the allergen, contact is made with B cells, these B cells differentiate and produce IgE antibody. The IgE antibodies which works against the allergens are released into the blood stream where they binds to Fc receptors which are located on mast cells and basophils. Now, the mast cells has become sensitized and they will wait patiently for the second exposure. When contact with the allergen is made the second time, the allergen becomes attached to the IgE present on the mast cells and this result in degranulation which trigger a lot of allergic responses.
Answer:
Each granddaughter cell is haploid (n)
Explanation:
Meiosis in the parent cell with a "2n" chromosome number would produce a total of four daughter cells. Each of these daughter cells would have an "n" number of chromosomes as separation of homologous chromosomes to the opposite poles during anaphase-I reduces the chromosome number to half in the daughter cells. Also, the event of crossing over and random segregation of homologous chromosomes makes the daughter cells of meiosis genetically different from each other.
Each of these four cells enters mitosis and forms a total of eight cells. Since mitosis maintains the chromosome number, each of the eight cells would have an "n" number of chromosomes and would be haploid.
The question is incomplete as it is incomplete therefore a picture of the complete question has been attached.
Answer:
To be used by the cells for energy
Explanation:
The digestive process of humans digest or breakdown or oxidise the organic molecules present in the food to simple compounds which could be easily utilised by the human body.
The human body composed of tissue and cell requires energy to perform metabolic reactions in the form of ATP which are provided by the digestion of the complex food material.
The macronutrients present in the food thus are digested and absorbed by the cells to perform reactions which could provide energy therefore the selected option is the correct answer.
