In: Biology
1. What defends against infectious disease?
Ans: The human body itself acts as a barrier against infectious disease. It includes physical and chemical barriers which is always ready and prepare the body itself from infection. It include skin, mucus, cilia, stomach present in acid and white blood cells (neutrophils). The immunity power of the body is the key which defends against infectious diseases.
2. What integrates information from internal external environment?
Ans: The integration of information from internal and external environment is called homeostasis. Homeostasis is defined as the ability to maintain a relatively stable internally without bothering the changes in outside world. All the living organism in the world must regulate their own internal environment survive and to produce energy.
3. What store minerals?
Ans: The minerals are the vital parts of the body. The bones acts as a reservoir for minerals for metabolic function. Bones stores 99% of the total calcium present in the body and 85% of the phosphorus. Also it is very necessary to keep the blood level of calcium.