CIE IGCSE Biology

Revision Notes

1.4 Classifying Animals

Vertebrates

  • All vertebrates have a backbone. There are 5 classes of vertebrates:

 

1.4 Vertebrates table, IGCSE & GCSE Biology revision notes

 

Vertebrate Classifcation, IGCSE & GCSE Biology revision notes

Vertebrate classification

Invertebrates

  • One of the morphological characteristics used to classify invertebrates is whether they have legs or not
  • All invertebrates with jointed legs are part of the phylum Arthropods
  • They are classified further into the following classes:

 

1.4 Invertebrates table, IGCSE & GCSE Biology revision notes

 

Arthropod Classifcation, IGCSE & GCSE Biology revision notes Arthropod classification

Author: Jenna

Jenna studied at Cardiff University before training to become a science teacher at the University of Bath specialising in Biology (although she loves teaching all three sciences at GCSE level!). Teaching is her passion, and with 10 years experience teaching across a wide range of specifications – from GCSE and A Level Biology in the UK to IGCSE and IB Biology internationally – she knows what is required to pass those Biology exams.
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