Explanation

The the life cycle of a butterfly:

• Eggs: The female butterfly lays eggs on a leaf.
• Caterpillar (Larva): The egg hatches into a caterpillar, which eats and grows.
• Pupa (Chrysalis): The caterpillar transforms into a pupa, a resting stage where it undergoes metamorphosis.
• Adult (Butterfly): The pupa emerges as a fully formed adult butterfly, ready to fly and reproduce.

Explanation

• Over-eating can lead to obesity.
• While consuming spicy food can irritate the stomach lining.
• It potentially causing ulcers in susceptible individuals.

Explanation

In statistics, N is commonly used to represent the population size, whereas n denotes the sample size

Explanation

In a normal 28-day menstrual cycle, you would expect the LH surge to occur between Days 11-14.

This surge triggers ovulation, which typically happens around day 14. 

The luteinizing hormone (LH) surge occurs around the midpoint of the cycle, which is day 14 for a 28-day cycle.

Explanation

• The breathing centre of human body is lungs.
• Lungs are two soft spongy large balloon like organ located in the chest.
• The delicate lungs are protected by a cage of bones. This cage is called the ribcage.

Explanation

• Pollution is the introduction of harmful or poisonous substances into the environment, causing damage to the air, water, and land.
• This can have harmful effects on human health, wildlife, and the ecosystem as a whole.

Explanation

• Maize (Zea mays) is a monocotyledonous plant.
• It belonging to the family Poaceae (grass family).

Explanation

Phospholipids form the fundamental bilayer structure of biological membranes, providing a barrier and matrix for proteins.

They have hydrophilic heads and hydrophobic tails, allowing them to spontaneously arrange into stable membranes in aqueous environments.

Explanation

The heart consists of four chambers in which blood flows.

Blood enters the right atrium and passes through the right ventricle.

The right ventricle pumps the blood to the lungs where it becomes oxygenated.

Explanation

Vitamin C is found in:

• Citrus fruits like oranges, lemons, and grapefruit
• Other fruits like kiwi, guava, strawberries, and cantaloupe
• Vegetables like peppers, broccoli, Brussels sprouts, and potatoes