Videos for A3.1 Diversity of organisms - IB
These comprehensive video lessons help IB Biology students Standard Level (SL) and Higher Level (HL) understand and master the essential concepts needed for success in IB Exams. Each video focuses on A3.1 Diversity of organisms and is aligned with the IB Biology syllabus, ensuring focused learning on cell biology, genetics, and ecology. Students can watch and rewatch anytime, anywhere, perfect for visual learners, reinforcing complex concepts, and understanding IB methodology. By using RevisionDojo's video lessons consistently, learners build deep understanding and enter the exam with confidence.
9 min
Biology A3.1.1
A3.1.1 Variation between organisms as a defining feature of life
4 min
Biology A3.1.2
A3.1.2 Species as groups of organisms with shared traits
5 min
Biology A3.1.3
A3.1.3 Binomial system for naming organisms
4 min
Biology A3.1.4
A3.1.4 Biological species concept
4 min
Biology A3.1.5
A3.1.5 Difficulties distinguishing between populations and species
4 min
Biology A3.1.6
A3.1.6 Diversity in chromosome numbers of plant and animal species
4 min
Biology A3.1.7
A3.1.7 Karyotyping and karyograms
5 min
Biology A3.1.8
A3.1.8 Unity and diversity of genomes within species
7 min
Biology A3.1.9
A3.1.9 Diversity of eukaryote genomes
8 min
Biology A3.1.10
A3.1.10 Comparison of genome sizes
10 min
Biology A3.1.11
A3.1.11 Current and potential future uses of whole genome sequencing
9 min
Biology A3.1.12
A3.1.12 Difficulties applying the biological species concept (HL)
5 min
Biology A3.1.13
A3.1.13 Chromosome number as a shared trait within a species (HL)
3 min
Biology A3.1.14
A3.1.14 Engagement with local plant or animal species to develop a dichotomous key (HL)
7 min
Biology A3.1.15
A3.1.15 Identification of species from environmental DNA in a habitat using barcodes (HL)