Tag: evs

In animals, the structurally similar glucose polymer is the more densely branched glycogen, sometimes called "animal starch". Glycogen's properties allow it to be metabolized more quickly, which suits the active lives of moving animals.

Oxygen is the primary source of living without which life is not possible. Water is also the main source of living. Food and timber are important for the living but if not consumed or used for a few days it will not cause death. If a person stops breathing for some time he will surely die.

All ecosystems are defined by the flow of energy and nutrients, which creates a nourishment network (food web) connecting all organisms within that system.

Calcium plays ain important role in building and maintaining bones and teeth.calcium is important in the activity of many enzymes in the body. The contraction of muscles, release of neurotransmitters, regulation of heartbeat, and clotting of blood are all dependent on calcium.

Deficiency of calcium is known as Hypocalcemia.

 It occurs when calcium levels in the blood are low. 

Teeth and bones are made up of calcium and its deficiency can lead to dental changes, and osteoporosis, which causes the bones to become brittle. Hence, the deficiency of calcium can make our bones and teeth weak.

So, the correct option is 'make our bones and teeth weak'.

The body requires many different, carbohydrates, vitamins & minerals that are crucial for both body development & preventing disease. The deficiencies of these nutrients for a long time can cause deficiency disease.

The teeth are made up of minerals like calcium and phosphate. The dentine and the enamel of the teeth are made up of calcium. Thus, calcium is very important in the normal growth and development of the teeth and gums and its deficiency can lead to the weakening of the gums.

Night blindness is a nutritional disorder in which person is not able to see at night or in poor light. It is mainly caused due to the deficiency of vitamin A. Vitamin A is retinol that helps in the formation of rhodopsin that helps in vision in low light and hence in the absence of retinol, this pigments will not form and a person will not be able to see in dim light.

Orbital period of Halley's comet is $76$ years.

The asteroid belt is situated in the orbital space between Mars and Jupiter.

The tail of comets so formed, When comets come closer to the sun, because the sun's heat vaporizes some of the comets' material, releasing dust particles that were trapped in the ice.