Explanation

The S phase (Synthesis phase) of the cell cycle is when DNA replication and chromosome duplication occur.

It ensures each daughter cell receives a complete set of genetic material during cell division.

Explanation

An ulcer is a gut disorder where the inner lining of the stomach or intestine becomes sore or eroded.

It often causes pain, bleeding, and discomfort, especially in the stomach or small intestine.

Explanation

The word "malaria" comes from the Italian "mal" (bad) + "aria" (air), meaning "bad air."

It was once believed that malaria was caused by breathing unhealthy air from swamps.

Explanation

In a balanced chemical equation, the law of conservation of mass states that atoms are neither created nor destroyed.

So, the number of atoms of each element on the reactant side is always equal to that on the product side.

Explanation

In this reaction, element C displaces B from compound AB, forming A + BC.

Such reactions are classified as single displacement or single replacement reactions.

Explanation

As temperature increases, the solubility of gases like oxygen and carbon dioxide in water decreases.

This happens because gas molecules gain energy and escape more easily from the liquid.

Explanation

According to the pressure flow theory, roots can act as a sink (when storing food) and as a source (when mobilizing stored food).

This dual role depends on the plant’s growth stage and seasonal needs.

Explanation

Sclerenchyma provides rigidity and strength, while Collenchyma offers flexible support in growing parts.

Both are considered mechanical tissues because they help maintain the structural integrity of plants.

Explanation

Both the Light Microscope and Transmission Electron Microscope (TEM) produce 2D images of specimens.

TEM provides high-resolution internal details.

The light microscope shows surface-level structure.

Explanation

Pieris Rapae is scientific name given to butterfly.

Pieris Rapae is derived from a Greek word. 

Pieris Rapae means Radish.