Explanation

• William Harvey discovered the circulation of blood.
• He was the first physician to completely describe systemic blood circulation.
• Famous book: De Motu Cordis (On the Motion of the Heart and Blood) (1628)
• He is known as the Father of Circulation of Blood.

Additional information:

• Birth: 1578
• Death: 1657

Last verified on 23-06-2026

Explanation

The Induced Fit Model was proposed by Daniel Koshland in 1958.

• The enzyme active site is flexible, not rigid.
• Substrate binding induces a shape change in the enzyme.
• The perfect fit is achieved after binding, not before.

Explanation

• The vestibular apparatus of the inner ear maintains balance during head movement.
• It detects the position and movement of the head.
• The semicircular canals detect rotational (angular) movements.
• The utricle and saccule detect linear acceleration and head position.
• The brain combines these signals to maintain posture and balance.

Last verified on 02-08-2026

Explanation

• Slate is a metamorphic rock.
• It is mainly formed from shale or mudstone.
• Formation occurs under low-grade heat and pressure.
• Volcanic ash can also contribute to its formation.
• Type: Fine-grained, foliated metamorphic rock.

Last updated 27-07-2026 by NA

Explanation

• Cow and Deer are herbivores because they feed on plants.
• Herbivores eat grass, leaves, fruits, and other plant materials.

Additional information:

• Herbivores: Cow, Deer, Goat, Rabbit, Elephant
• Carnivores: Lion, Tiger, Leopard, Wolf, Cheetah
• Omnivores: Human, Bear, Crow, Pig, Hen

Last verified on 27-07-2026