Explanation

• Rickets is a disease caused by a deficiency of Calcium and Vitamin D.
• It leading to softening of the bones in children.
• It can cause bowed legs, stunted growth, and skeletal deformities.

Explanation

Lions are the only species of the cat family that live and hunt in groups, known as prides.

Unlike other big cats, they exhibit social behavior and cooperative hunting.

Explanation

Horses are not ruminant animals.

Cows, sheep, and goats, which have specialized stomachs for digesting plant-based food through rumination.

Explanation

If a plant has already become invasive in other regions.

It indicates a high potential to spread rapidly and outcompete native species in new environments as well.

Explanation

The primary nutrient stored in the liver is glycogen.

Additionally, the liver also stores vitamins (like vitamin A and vitamin B12) and minerals (like iron), but glycogen is the primary nutrient stored in large amounts.

Explanation

Viruses cause typhus.

Typhus is an infectious disease transmitted by fleas or lice, with various types caused by different bacteria.

But the term can sometimes be used loosely in reference to viral infections.

Explanation

Darwin himself bred pigeons.

He used selective breeding of pigeons to study and demonstrate the principles of natural selection and variation in species.

Explanation

Amino acids are a product of the digestion of proteins.

During digestion, proteins are broken down into amino acids.

They are then absorbed and used by the body for various functions.

Explanation

Vitamin D is useful in treating osteomalacia.

It helps in calcium absorption.

It is crucial for maintaining healthy bones and preventing bone softening.

Explanation

The pineal gland produces melatonin.

This hormone helps regulate sleep-wake cycles and circadian rhythms.