Explanation

Red Blood Cells (RBCs) are disc-shaped with a central depression (biconcave), not irregular in shape.

Their regular shape helps efficient oxygen transport throughout the body.

Explanation

In a root system, the cortex lies between the epidermis (outer layer) and the vascular bundle (xylem and phloem).

It mainly functions in storage and transport of water and nutrients.

Explanation

Biomechanics principles are used to understand the movements of muscles, joints, and bones, focusing on physical forces.

These principles help in analyzing motion and improving performance or preventing injury.

Explanation

The human spine naturally has four curves: cervical, thoracic, lumbar, and sacral.

These curves, along with the intervertebral disks, help to absorb and distribute stress during movement and activities.

Explanation

Tertiary treatment involves filtering, chlorination, and removing salts to further purify wastewater.

It is the final and most advanced stage of wastewater treatment.

Explanation

The gall bladder stores and concentrates bile produced by the liver.

Bile helps in the digestion and absorption of fats in the small intestine.

Explanation

Slime molds are multinucleated; they have many nuclei in a shared cytoplasm (called a plasmodium).

This allows them to move and feed efficiently as one large cell.

Explanation

• Vitamin B9 is most commonly known as folic acid 
• The technical chemical name is pteroyl-L-glutamic acid

Last updated by NS on 20-April-2026

Explanation

Uranium is a non-renewable energy source used in nuclear power plants for generating electricity through nuclear fission.

It is finite and cannot be replenished on a human timescale, unlike renewable energy sources such as solar or biomass.

Explanation

The liver typically weighs between 1400 to 1600 grams in healthy adult individuals.

It is the largest internal organ.

It plays vital roles in metabolism and detoxification.