pptx, 13.23 MB
pptx, 13.23 MB

This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here

This PowerPoint contains everything you need to teach the A3.1 Diversity of Organisms in the new IB Biology specification.

This Powerpoint consists of 93 slides and contains the followings:

All the information ( HL) the IB have included in the new spec.
Exam tips
Clear diagrams
Videos
Student research tasks
Clearly identified HL and SL content

The following content is included:

A3.1.1: variation between organisms as a defining feature of life.
A3.1.2: Species as groups of organisms with shared traits.
A3.1.3: Binominal system for naming organisms
A3.1.4: Biological species concept
A3.1.5: Difficulties distinguishing between populations and species due to divergence and non-interbreeding populations during speciation.
A3.1.6: Diversity in chromosome numbers of plant and animal species.
A3.1.7: Karyotyping and karyograms
A3.1.8: Unity and diversity of genomes between species.
A3.1.8: Diversity of eukaryotic genomes
A3.1.10: Comparison of genome sizes
A3.1.11: Current and potential future uses of whole genomic sequencing.
A3.1.12: Difficulties applying the biological species concept to asexually reproducing species and to bacteria that have horizontal gene transfer (HL only).
A3.1.13: Chromosome number as a shared trait within a a species.
A3.1.14: Engagement with local plant or animal species to develop dichotomous keys.
A3.1.15: Identification of species from environmental DNA in a habitat using barcodes.

Reviews

3.5

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thf2191

8 months ago
5

Great lesson, thank you for sharing. Clear to follow and engaging

kitlh

8 months ago
2

This presentation is littered with spelling errors throughout. These errors often relate to key biological terms, for example, the word 'karyotype' is repeatedly misspelt. Poor grammar and the incorrect usage of English derivatives from important Latin root words are likewise equally disappointing when you have applied a charge for purchasing your presentation.

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