Answer:
The correct answer is: d. loss of blood pressure and loss of oxygen-carrying capacity.
Explanation:
- Blood is a liquid connective tissue which is the major component responsible for transporting nutrients and oxygen to all the cells in the body and for removing carbon dioxide and metabolic wastes from all the cells of the body.
- When there is excessive blood loss, the total volume of blood in the body decreases far below normal. As a result of this the blood pressure (pressure applied by the blood on the walls of the arteries) decreases.
- This is because the rate at which blood is lost is far more than the rate at which it is produced.
- The decrease in blood pressure prevents the blood from travelling easily against the gravity, hence it is unable to reach all the regions of the body, thereby depriving many cells of nutrients and oxygen. The waste products are also not efficiently collected from these cells. This causes the cells in the deprived regions to die.
- Blood carries the most important component required for respiration and metabolism, that is oxygen, in association with haemoglobin molecules. Excessive blood loss causes loss of haemoglobin as well. This can cause reduction in the oxygen-carrying capacity of blood. Hence the cells of the body are unable to carry out metabolic activities properly due to the dearth of oxygen. This causes the death of cells.
- Excessive death of cells causes tissues to become non-functional and that can cause organ failure. Multiple organ failure can pose severe threat to life.
Answer: 1.A food web is multiple food chains and an energy pyramid shows how energy moves through trophic levels.
Explanation:
Answer:
Plus end and kinesin.
Explanation:
Three important cytoskeleton components are microtubules, microfilaments and intermediate filaments. Microtubules are the polymer of tubulin and plays an important role in the movement of cell organelles and its structure.
Microtubules shows the process of polymerization and depolymerization at different ends. The plus end shows the polymerization and minus end shows the depolymerization process. The kinesin protein is required for the process of polymerization.
Thus, the correct answer is option (D).
Answer:
It dominates the phenotype
Explanation:
