Explanation

A polynomial having 3 terms is known as trinomial.

A polynomial having more than 3 terms is multinomial. 

Explanation

Dendrites are branched fibers that receive nerve impulses and carry them toward the cell body.

They act like antennas, picking up signals from other neurons.

Explanation

Ribosomes are the organelles responsible for protein synthesis.

They are often referred to as the "factories of food" because they assemble amino acids into proteins.

They can be found either floating freely in the cytoplasm or attached to the endoplasmic reticulum.

Explanation

The north pole of a magnet is usually painted red for easy identification.

The south pole is typically painted blue.

Explanation

Insulators are materials that resist the flow of heat (and also electricity), such as wood, rubber, or plastic.

They are used to prevent heat loss or protect from heat transfer.

Explanation

Biodegradable materials decompose naturally by microorganisms (bacteria, fungi).

Meat and paper break down over time, while plastic and polythene are non-biodegradable.

Explanation

Gears are simple machines made of toothed wheels that interlock and transfer motion or force.

They help change the speed, direction, or torque of a mechanical system.

Explanation

When an acid reacts with a carbonate, it produces salt, water, and carbon dioxide as products.

A general reaction is:

Acid + Carbonate → Salt + Water + CO₂

Example: HCl + CaCO₃ → CaCl₂ + H₂O + CO₂

Explanation

The Human Genome Project was completed in 2003, mapping all human genes.

It revolutionized medicine, genetics, and biotechnology by enabling gene-based treatments.

Explanation

The retina contains light-sensitive cells (rods and cones) that detect light and color.

It transmits visual signals to the brain via the optic nerve.