This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.

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3 (b) Stiffening agents are substances applied to fabrics, typically during laundry, to add body, crispness, or stiffness, helping them to hold their shape and resist wrinkling.
3 (c) Four types of stiffenings are: • Starch • Fabric stiffeners • Gelatin • Sugar solution
4 (a) Weaning is the gradual process of introducing a baby to solid foods and liquids other than breast milk or formula, while progressively reducing the amount of milk feeds.
4 (b) Eight types of weaning foods are: • Pureed fruits (e.g., banana, apple) • Pureed vegetables (e.g., carrot, sweet potato) • Fortified rice cereal • Mashed potatoes • Soft-cooked, mashed lentils • Plain yogurt • Soft-cooked, mashed chicken • Scrambled egg yolk
4 (c) Four importance of breast milk to the baby are: • Provides all essential nutrients for optimal growth and development. • Contains antibodies that protect against infections and diseases. • Promotes healthy brain development. • Easily digestible and reduces the risk of allergies and digestive issues.
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3 (b) Stiffening agents are substances applied to fabrics, typically during laundry, to add body, crispness, or stiffness, helping them to hold their shape and resist wrinkling.
This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.