Explanation

• Mushrooms are heterotrophs and cannot make their own food.
• They obtain nutrients by absorbing them from dead and decaying organic matter or from living organisms.
• Fungi lack chlorophyll, so they cannot perform photosynthesis.
• Fungi belong to the Kingdom Fungi.

Last verified on 27-07-2026

Explanation

• A vegan avoids animal products, including meat, dairy, eggs, and often other animal-derived products.

Additional information 

• Vegetarian: Does not eat meat, but may eat dairy and eggs.
• Carnivore: Eats only meat.
• Omnivore: Eats both plants and meat. 

Last updated 26-07-2026 by NA

Explanation

• Blood pressure readings use two numbers: systolic (top) and diastolic (bottom).
• An ideal normal reading is less than 120/80 mm Hg.
• Cardiac output: More blood pumped by the heart → higher BP.
• Blood volume: Increased blood volume → increased BP.

Last updated 25-07-2026 by NA

Explanation

• Germs are microorganisms that can cause disease.
• When germs enter a wound, they may cause an infection.
• Keeping germs out of wounds helps prevent infection.

Last updated 24-07-2026 by NA

Explanation

• The age of a tree is determined by its Rings (Number of Annual Rings).
• Each annual ring generally represents one year of growth.
• Counting the rings on the trunk helps determine the tree's age.
• The study of tree rings is called Dendrochronology.

Last verified on 20-07-2026

Explanation

• Gregor Mendel is known as the Father of Genetics.
• He discovered the Laws of Inheritance through experiments on pea plants between 1856–1863.
• His research was published in 1866.

Last verified on 19-07-2026

Explanation

• Bones do not secrete hormones,
• Hormones are produced by glands in the endocrine system.
• The parathyroid gland secretes parathyroid hormone.
• It regulates calcium levels in the blood and bones.

Addition information 

• Functions performed by bones in the human body:
• Support: Provides a rigid framework for soft tissues.
• Protection: Shields vital organs like the brain, heart, and lungs.

Last updated 18-07-2026 by NA

Explanation

• The lungs are located in the thoracic cavity.
• The thoracic cavity is the chest cavity protected by the rib cage.
• It contains the lungs, heart, trachea, and major blood vessels.
• The lungs are enclosed by the pleural membranes.
• This cavity plays a vital role in breathing and respiration.

Last verified on 18-07-2026

Explanation

• Insulin and glucagon regulate blood glucose (sugar) levels.
• Insulin lowers blood sugar by helping cells absorb glucose.
• Glucagon raises blood sugar by releasing stored glucose from the liver.
• Both hormones are produced by the pancreas.
• They work together to maintain normal blood sugar levels.

Verified & Updated

Explanation

• An endemic disease is a disease that is constantly present in a specific population or geographic area.
• Examples:
• Malaria
• Chickenpox
• Dengue Fever

Additional information 

• Epidemic: A sudden, unexpected spike in cases within a specific community or region.
• Pandemic: An epidemic that has spread globally, covering multiple countries or continents.

Last updated by NA on 16-07-2026