Science (086) — AI-generated practice question

Spirogyra has a simple body organisation with no specialised tissues or organs. When it breaks into fragments, each piece contains all the necessary cell types to grow into a new individual.

In humans, cells are highly specialised and organised into specific tissues and organs placed at definite positions in the body. Such complex organisation makes cell-by-cell division through fragmentation impractical.

Source: Chapter 7, Section 7.2.2 Fragmentation

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The key contrast examiners look for is:

• Spirogyra = simple body, no tissue/organ specialisation → fragments can grow independently.
• Humans = specialised cells → tissues → organs at fixed positions → fragmentation cannot recreate this complex organisation.

Avoid writing a long essay. Two focused points, one for each organism, is exactly what a 2-mark answer needs.