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CAIE A-Level Biology A2 18.1.2 Three Domains Questions

Compare Bacteria, Archaea and Eukarya by interpreting cell structures, genetic evidence and characteristic features to classify organisms in Cambridge A Level Biology questions.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • Compare the three domains of life by using cell structure, genetic evidence and characteristic features to classify organisms as Bacteria, Archaea or Eukarya.

CAIE A-Level Biology A2 18.1.2 Three Domains Questions question 1

[Maximum number: 1]

The aye-aye, Daubentonia madagascariensis, is a mammal, native to Madagascar. Aye-ayes are active at night and make their nests high up in trees. They feed on insect larvae in the trunks of trees.

Fig. 1.1 shows an aye-aye.

Fig. 1.1

Fig. 1.1

The International Union for Conservation of Nature (IUCN) categorises the aye-aye as endangered. This means that the aye-aye has a very high risk of becoming extinct in the wild.

Name the domain to which the aye-aye belongs.

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