Biology 0610 · IGCSE · Features of organisms

Features of organisms — practice question

The diagram illustrates a dolphin. Dolphins are mammals that live in the sea. Which row correctly names some of the characteristics of dolphins?

  • Aorgan of gas exchange: gills; produces milk: no
  • Borgan of gas exchange: gills; produces milk: yes
  • Corgan of gas exchange: lungs; produces milk: no
  • Dorgan of gas exchange: lungs; produces milk: yes

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