Standard Science Primary 3 Diversity

Siti observed two organisms, A and B. Organism A can be seen with the naked eye and grows on rotting wood. Organism B can only be seen using a microscope. What could Organism A and B be?

A A: Bacteria; B: Mold
B A: Bacteria; B: Yeast
C A: Fern; B: Mushroom
D A: Mushroom; B: Bacteria
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Worked Solution

Step 1: Identify that Organism A is large (naked eye) and decomposes (rotting wood) -> likely a fungus like a mushroom. Step 2: Identify that Organism B is microscopic -> bacteria or yeast. Step 3: Option A fits both criteria perfectly.

Correct answer: A: Mushroom; B: Bacteria

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