Explanation

Mitochondria are known as the "Power House" of cells because they generate energy in the form of ATP through cellular respiration.

They play a crucial role in providing the energy needed for various cellular functions.

Explanation

• A food web is a network of multiple food chains that overlap and connect.
• It showing the complex feeding relationships between different species in an ecosystem.
• It's a web-like structure that illustrates the various pathways that energy and nutrients flow through the ecosystem.

Explanation

• When a French bean germinates in soil, a hook-like structure emerges, which is called the hypocotyl.
• The hypocotyl is the stem of the seedling, and in French beans.
• It forms a hook-like structure that pushes the cotyledon (seed leaf) upwards.

Explanation

• The maize seed is surrounded by a seed coat (also known as the testa) and has an opening called the micropyle.
• The micropyle is a small pore or opening in the seed coat through which water enters the seed during germination.
• It allowing the seed to absorb moisture and begin the germination process.

Explanation

Diarrhea and typhoid are caused by bacterial infections:

• Diarrhea can be caused by various bacteria, such as E. coli, Salmonella, Shigella, and Campylobacter.
• Typhoid is caused by the bacterium Salmonella Typhi (S. Typhi).

Explanation

• Non-flowering plants, such as ferns, mosses, and liverworts, produce spores as their reproductive structures, instead of seeds.
• Spores are similar to the seeds of flowering plants, but are much smaller and more primitive.
• They allow non-flowering plants to disperse and colonize new areas.

Explanation

Mothers known to be HIV-infected (and whose infants are HIV uninfected or of unknown HIV status)

Should exclusively breastfeed their infants for the first 6 months of life

Introduce appropriate complementary foods thereafter, and continue breastfeeding.

Explanation

• Carnivores are secondary consumers that eat primary consumers (herbivores).
• In this case, birds and mice are primary consumers (herbivores) that eat plants and plant products.
• Carnivores that eat birds and mice are secondary consumers.

Examples of carnivores that might eat birds and mice include:

• Hawks and owls (birds of prey)
• Foxes, wolves, and cats (mammals)
• Snakes and lizards (reptiles)

Explanation

• Marasmus is a severe form of protein-energy malnutrition that affects infants and young children.
• It leading to weight loss, wasting of fat and muscle, stunted growth, and developmental delays.

Explanation

Calcium is an essential mineral found in various foods, including:

• Milk and dairy products (cheese, yogurt)
• Egg shells
• Dark green vegetables (broccoli, kale, spinach)
• Small fish (salmon, sardines) and their bones
• Fortified foods (cereals, juices)

Calcium is crucial for:

• Building and maintaining strong bones and teeth
• Muscle function and contraction
• Nerve function and transmission
• Blood clotting and wound healing