Tag Archives: classification

IGCSE Bio Topic 1 – Characteristics & Classification of living organisms

1.1 Characteristics of living organisms

1.1 Characteristics notes in downloadable word format.

BBC Curriculum Bites: Mrs Gren (1m).

Cambridge igcse biology ( 2016 2018) classification of living organisms from Mr Tarek Saad Ibrahim


A lesson on Nature and Variety of Living Organisms:

1.2 to 1.4 Classification revision notes  in downloadable word format.

5.3 Classification of Biodiversity

5.3 classification of biodiversity from Bob Smullen

IB Biology 5.3 Slides: Classification & Taxonomy from Jacob Cedarbaum

A couple of introductory TED-Ed videos: the secret life of plankton (6m) and how life came to land (5m 27s).

Classification of Living Things (4m):

An animated tutorial from McGraw Hill Education on the Three Domains and here is the tree of life: the ancestors’ tale in OneZoom. And the biomass distribution on earth.

InThe Classification of Life, Paul Andersen explains the goal of classification as well as its history (you won’t be tested on this but it’s important) and in The Three Domains of Life he describes the three domains.

In Crash Course Biology #19 – Taxonomy: Life’s Filing System, Hank tells us the background story and explains the importance of the science of classifying living things. In #22 – Simple Animals: Sponges, Jellies & Octopuses, Hank introduces us to the “simplest” of the animals and in #23 – Complex Animals: Annelids & Arthropods, Hank continues our exploration of animal phyla with the more complexly organised annelida and arthropoda.

The three different ways mammals give birth, a TED-Ed lesson in 5m.

A quiz on Plant Classification (good luck!).

The importance of classification – woodlice names in the UK & elsewhere.

Key terms as flashcards from Quizlet (you also can test yourself in a number of ways):

5.4 Cladistics

IB Biology 5.4 Slides: Cladistics from Jacob Cedarbaum

IB 5.4 – Cladograms, a 15m video from Dan Rott.

Paul Andersen (from Bozeman High) discusses Phylogenetics and then shows you how to construct a Cladogram from a group of organisms using shared characteristics.

Key terms as flashcards from Quizlet (you also can test yourself in a number of ways):

Human Evolution

D3 Human Evolution notes – these are taken from BioNinja (with thanks).

Timeline of Human Evolution – from 530 mya – interesting but not useful for the exam (3m 28s):

Here’s another power-point (a bit more detailed than above):