Explanation

• The longest bone is the Femur (thigh bone) and the shortest one is the Stapes (one of the 3 small bones inside the ear).
• The largest and broadest is the hip bone or pelvis.

Additional information:

• The lowest part of the backbone called the sacrum.
• The smallest bone is the stirrup (stapes).
• The strongest bone for its size is the lower jaw or mandible.

Last verified on 03-09-2026

Explanation

• The largest solid internal organ is liver.
• It weighs approximately 3–3.5 pounds or 1.36–1.59 kilograms.
• It is about the size of a football.

Last verified on 03-09-2026

Explanation

• Meristematic cells are generally without a large vacuole.
• They are actively dividing cells found in the growing regions of plants.
• Their cytoplasm is dense, and they have a prominent nucleus.
• Large vacuoles develop as plant cells mature.

Last verified on 02-09-2026

Explanation

• The kidneys purify the blood in the human body.
• They remove waste materials and extra water.
• Kidneys help maintain the body’s chemical balance.
• Each person has two kidneys.
• They produce urine as a waste product.

Last verified on 07-06-2026

Explanation

• DNA stands for Deoxyribonucleic Acid.
• DNA is a biological molecule found in all living cells.
• It carries genetic information from parents to offspring.
• It controls growth, development, and body functions.
• DNA is present in the nucleus of cells (mainly in chromosomes).
• It is made of nucleotides arranged in a double helix structure.
• It was discovered by James Watson and Francis Crick (1953 structure model).

Last verified on 01-06-2026