GCSE Biology

Classification means grouping things by their features or characteristics.

The more characteristics that are used to group similar organisms together, the more reliable the classification.

Kingdom

Phylum

Class

Order

Family

Genus

Species

Animals, plants, fungi, protoctista, prokaryotae.

Animals: multicellular, no cell walls, no chlorophyll, feed heterotrophically

Plants: multicellular. cell walls, chlorophyll, feed autotrophically

Fungi: Multicellular, cell walls, no chlorophyll, feed saprophytically

Protoctista: mostly unicellular, have a nucleus

Prokaryotae: unicellular, no nucleus

Scientists do not think that they are living organisms because they ruse other cells to reproduce and they do not show any other life processes eg growth.