Explanation

Table tennis balls are usually white or yellow for better visibility against different table and background colors.

These colors are approved by the International Table Tennis Federation (ITTF) for official play.

Explanation

When Clostridium tetani spores enter the body (especially through wounds), they germinate in anaerobic conditions into active (vegetative) bacteria.

These bacteria then produce a neurotoxin (tetanospasmin), causing muscle stiffness and spasms.

Explanation

Ribosomes are tiny organelles found in both prokaryotic and eukaryotic cells.

They are responsible for synthesizing proteins by linking amino acids according to genetic instructions.

Explanation

Rock candy is made by crystallizing sugar from a supersaturated solution using a seed crystal.

This process is known as the seedling technique, where crystals slowly grow over time.

Explanation

Diabetes is a condition where blood glucose levels become too high or too low due to insulin problems.

It includes Type 1, Type 2, and gestational diabetes, affecting how the body uses sugar for energy.

Explanation

Explanation

Salads often contain vegetables rich in vitamin A, beta-carotene, and antioxidants, which support eye health.

Regular salad intake can help maintain good vision and protect against eye disorders.

Explanation

In animal cells, after nuclear division, a cleavage furrow forms in the middle of the cytoplasm during cytokinesis.

This furrow deepens and eventually splits the cell into two daughter cells.

Explanation

During respiration, the body uses oxygen to produce energy and releases carbon dioxide as a waste product.

This CO₂ is exhaled through the lungs.

Explanation