What is external fertilization? The following diagram shows life cycle of a frog. Identify A, B , C and D in the diagram. [3 MARKS]

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Solution

Definition: 1 Mark
Each label: 0.5 Mark

1. External fertilization is the process in which a sperm cell unites with an egg cell outside the body, rather than inside a specialized organ within the body of a parent.
2. A. Eggs
B. Early tadpole
C. Late tadpole
D. Adult frog

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