Explanation

• The pituitary gland is located at the base of the brain.
• It is below the hypothalamus.
• It sits in a hollowed-out area of the sphenoid bone called the sella turcica.

Last verified on 05-09-2026

Explanation

• The liver is the largest gland in the human body.
• It is situated in the right upper quadrant of the abdomen, beneath the diaphragm, and above the stomach.
• It is reddish-brown.
• It is weighs approximately 1.5 kg.

• The pineal gland is the smallest gland.
• It about the size of a grain of rice.
• It weighs approximately 150 mg.
• It is part of the endocrine system.

Explanation

• Antonie van Leeuwenhoek is known as the Father of Microbiology.
• He was the first to observe and describe microorganisms using a microscope.
• He observed microscopic organisms in 1674.
• His discoveries included bacteria, protozoa, and other microscopic life forms.

Last verified on 05-09-2026

Explanation

Explanation

• Allergy is an abnormal immune response to harmless substances like dust or pollen.
• It occurs when the body reacts excessively to an allergen.
• This reaction involves the immune system producing antibodies.
• Thus, allergy is mainly due to an antigen–antibody reaction.

Last verified on 23-04-2026