Flashcards for A - Unity and Diversity - IB
These interactive flashcards help IB Biology students Standard Level (SL) and Higher Level (HL) quickly review and memorize the essential definitions, formulas, and terms needed for success in IB Exams. Each card focuses on A - Unity and Diversity and is aligned with the IB Biology syllabus, ensuring focused revision on cell biology, genetics, and ecology. Students can test themselves anytime, anywhere, perfect for reinforcing tricky concepts, learning IB terminology, and committing formulas to memory. By using RevisionDojo's flashcards consistently, learners turn repetition into mastery and enter the exam with confidence.
Try our new Spaced Repetition system
Applies to all decks
A1.2 Nucleic acids
15 subtopics
A1.2.5 RNA as a polymer formed by condensation of nucleotide monomers
16 flashcards
A1.2.9 Diversity of possible DNA base sequences and its capacity for storing information
12 flashcards
A1.2.10 Conservation of the genetic code as evidence of universal common ancestry
12 flashcards
A1.2.11 Directionality of RNA and DNA (HL only)
17 flashcards
A1.2.13—Structure of a nucleosome (HL only)
15 flashcards
A1.2.14 Evidence from the Hershey–Chase experiment for DNA as the genetic material (HL only)
14 flashcards
A1.2.15 Chargaff’s data on pyrimidine and purine bases across diverse life forms (HL only)
12 flashcards
A2.2 Cell structure
14 subtopics
A2.2.5 Prokaryote cell structure
4 flashcards
A2.2.8 Differences in eukaryotic cell structure between animals, fungi, and plants
20 flashcards
A2.2.10 Cell types and cell structures viewed in light and electron micrographs
17 flashcards
A2.2.13 Cell differentiation (HL)
22 flashcards
A2.2.14 Evolution of multicellularity (HL)
4 flashcards
A3.1 Diversity of organisms
15 subtopics
A3.1.3 Binomial system for naming organisms
19 flashcards
A3.1.4 Biological species concept
23 flashcards
A3.1.5 Difficulties distinguishing between populations and species
18 flashcards
A3.1.6 Diversity in chromosome numbers of plant and animal species
21 flashcards
A3.1.7 Karyotyping and karyograms
21 flashcards
A3.1.8 Unity and diversity of genomes within species
14 flashcards
A3.1.9 Diversity of eukaryote genomes
23 flashcards
A3.1.10 Comparison of genome sizes
21 flashcards
A3.1.11 Current and potential future uses of whole genome sequencing
20 flashcards
A3.1.12 Difficulties applying the biological species concept (HL)
19 flashcards
A3.1.13 Chromosome number as a shared trait within a species (HL)
15 flashcards
A3.1.14 Engagement with local plant or animal species to develop a dichotomous key (HL)
17 flashcards
A3.1.15 Identification of species from environmental DNA in a habitat using barcodes (HL)
20 flashcards
A3.2 Classification and cladistics (HL)
9 subtopics
A3.2.2 Difficulties classifying organisms into the traditional hierarchy of taxa (HL)
19 flashcards
A3.2.3 Advantages of classification corresponding to evolutionary relationships (HL)
15 flashcards
A3.2.4 Clades as groups of organisms with common ancestry and shared characteristics (HL)
19 flashcards
A3.2.5 Gradual accumulation of sequence differences (HL)
20 flashcards
A3.2.6 Base sequences of genes or amino acid sequences of proteins (HL)
14 flashcards
A3.2.8 Using cladistics to investigate evolutionary relationships (HL)
19 flashcards
A3.2.9 Classification of all organisms using evidence from rRNA base sequences (HL)
19 flashcards
A4.1 Evolution and speciation
11 subtopics
A4.1.3 Evidence for evolution from selective breeding of domesticated animals and crop plants
15 flashcards
A4.1.4 Evidence for evolution from homologous structures
15 flashcards
A4.1.5 Convergent evolution as the origin of analogous structures
20 flashcards
A4.1.6 Speciation by splitting of pre-existing species
20 flashcards
A4.1.7 Roles of reproductive isolation and differential selection in speciation
16 flashcards
A4.1.8 Differences and similarities between sympatric and allopatric speciation (HL)
21 flashcards
A4.1.9 Adaptive radiation as a source of biodiversity (HL)
15 flashcards
A4.1.10 Barriers to hybridization and sterility of interspecific hybrids (HL)
26 flashcards
A4.1.11 Abrupt speciation in plants by hybridization and polyploidy (HL)
18 flashcards
A4.2 Conservation of biodiversity
8 subtopics
A4.2.1 Biodiversity as the variety of life in all its forms, levels and combinations
20 flashcards
A4.2.2 Comparisons between current number of species on Earth and past levels of biodiversity
21 flashcards
A4.2.3 Causes of anthropogenic species extinction
21 flashcards
A4.2.4 Causes of ecosystem loss
19 flashcards
A4.2.5 Evidence for a biodiversity crisis
23 flashcards
A4.2.6 Causes of the current biodiversity crisis
21 flashcards
A4.2.7 Need for several approaches to conservation of biodiversity
18 flashcards