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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Here are the answers to question 1(a):
a) i) Step 1: Define tolerance. Tolerance in biology refers to the ability of an organism or a biological system to endure or adapt to a particular environmental condition, substance, or stress without significant harm. It describes the range of conditions an organism can survive in.
a) ii) Step 2: Name four materials transported by the blood. Blood transports various essential materials throughout the body. Four such materials are: • Oxygen • Carbon dioxide • Nutrients (e.g., glucose, amino acids) • Hormones
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a) i) Step 1: Define tolerance. Tolerance in biology refers to the ability of an organism or a biological system to endure or adapt to a particular environmental condition, substance, or stress without significant harm.
This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.