Explanation

• Stomata are small openings on the surface of leaves that allow for gas exchange.
• Including the entry of carbon dioxide and the release of oxygen and water vapor.

Explanation

• The outer ear receives sound vibrations and passes them on to the eardrum (tympanic membrane).
• Which then transmits the vibrations to the middle ear.

Explanation

• Coleoptile is a protective sheath that covers the emerging plumule (shoot) in grasses, including maize (Zea mays).
• It is a characteristic feature of monocotyledonous plants, particularly in the family Poaceae (grass family).

Explanation

• Birds are a group of animals that lay eggs, are warm-blooded, have either a beak or bill, have feathers on their body, and have a tail, two legs, and two wings.
• Examples: sparrows, eagles, robins, and ostriches.

Explanation

• If the number of frogs increases, it is likely that the number of snakes would decrease.
• This is because snakes are predators that feed on frogs, and an increase in frog population would lead to a decrease in snake population due to competition for resources and potential overgrazing.

Explanation

Iron is an essential mineral that plays a crucial role in:

• Producing red blood cells (hemoglobin)
• Oxygen transport (binding to oxygen in lungs and releasing it to tissues)
• Energy conversions (supporting cellular metabolism)

Explanation

Vitamin C is essential for: Strengthening the immune system and Preventing Scurvy, a disease characterized by:

• Fatigue and weakness
• Bleeding gums and loose teeth
• Joint pain and swelling
• Poor wound healing

Vitamin C is important for:

• Collagen production
• Iron absorption
• Antioxidant functions
• Supporting white blood cell function

Explanation

• Fat provides approximately twice as much energy as the same amount of carbohydrate.
• This is because fat contains approximately 9 kcal/g (kilocalories per gram).
• Carbohydrate contains approximately 4 kcal/g.

Explanation

Direct inguinal hernias occur when abdominal contents protrude through a weak point in the abdominal wall, specifically medial to the inferior epigastric vessels.

This type of hernia typically occurs through Hesselbach's triangle.

Explanation

• Plants absorb Carbon Dioxide (CO2) during the daytime through tiny openings on their leaves called stomata.
• They use this carbon dioxide, along with water (H2O) and light energy from the sun, to produce glucose (C6H12O6) and oxygen (O2) through the process of photosynthesis.