Explanation

AB negative is the rarest of the eight main blood types

A universal donor has the blood group is "O"

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The rarest blood types are:

Explanation

Digestion begins in the mouth, when you chew and swallow, and is completed in the small intestine.

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VU LDC UDC FIA PAPER 27-12-2021

Explanation

Goiter is a disease in which the thyroid gland present in neck enlarges, resulting swelling in the neck. 

Goiter means گلہڑ

Explanation

The element of an electric stove made nicrome.

Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time.

Explanation

• Omnivores are animals that eat both plants and animals.
• They have adaptations that allow them to digest and extract nutrients from a wide variety of food sources, including fruits, leaves, insects, small animals, and even carrion.
• Examples of omnivores include humans, bears, pigs, chimpanzees, and raccoons.
• Only plants: Herbivores (e.g., cows).
• Only animals: Carnivores (e.g., lions).

Explanation

The permanent hardness of water is caused by Chloride, Nitrates, Calcium and Sulphates of Magnesium 

Permanent Hardness is not precipitated by boiling 

It is removed by Zeolite

Additional Information:

The Presence of Calcium and Magnesium Bicarbonates causes temporary hardness of water 

Temporary hardness can be removed by boiling the water

Explanation

Certain poisonous substances in the body can delay the process of putrefaction. They include:

• Carbolic acid (Phenol)
• Arsenic and antimony
• Strychnine
• Nux vomica (plant)
• Zinc chloride, ZnCl2
• Morphine
• Aconitine

Putrefaction is referred the breaking down of the body of an animal post-mortem

Explanation

Infectious diseases are caused by pathogens.

Pathogens of all classes must have mechanisms for entering their host and for evading immediate destruction by the host immune system.

Explanation

Number of moons in the planets

Saturn: 83

Jupiter: 92

Uranus: 27

Neptune: 14

Mars: 2

Earth: 1

Venus: 0

Mercury: 0

Explanation

Energy density is defined as energy per unit volume, so the SI unit is joules per cubic meter (J/m³).

It applies to electric fields where

𝑢 = 1/2𝜀𝐸², with 𝑢 being energy density.