Ib biology topic 4 Study guides, Class notes & Summaries

IB Biology Topic 4 : Ecology Latest Version Graded A+ Ecology The science of the relationships between organisms and their environments. Organism an individual living thing that uses energy, reproduces, responds, grows, and develops Species a group of similar organisms that can breed and produce fertile offspring Population group of individuals of the same species that live in the same area Community all living, or biotic, things in an area Ecosystem all biotic (living) and...

IB Biology SL — Topic 1 • Cell Biology with Complete Solutions Cell theory 1. All living things are composed of cells 2. Cells are the smallest unit of life 3. Cells only arise from pre-existing cells Striated muscle cell Exception to cell theory! → Muscle cells fuse to form fibres that may be very long (>300mm) → Consequently, they have multiple nuclei despite being surrounded by a single, continuous plasma membrane → Challenges the idea that cells always funct...

IB Biology - Topic 3 – Genetics Latest 2024 Graded A+ Define gene. A heritable factor that consists of a length of DNA (not an entire chromosome) and influences a specific characteristic Define allele. Various forms of a gene Define locus. The position a gene occupies on one type of chromosome Define genome. The whole genetic information of an organism How do alleles differ from one another? By a few differences in DNA base sequence What is the genome size (million base p...

IB BIOLOGY TOPIC 4 ECOLOGY COMPLETE STUDY GUIDE 2023 Topic 4.1: Ecology – Species, communities and ecosystem The continued survival of living organisms including humans depends on sustainable communities. • Understanding: Species are groups of organisms that can potentially interbreed to produce fertile offspring.  Species: groups of organisms that can potentially interbreed to produce fertile off-springs  Crossbreeding: interbreeding between different species with off-springs ...

IB BIOLOGY TOPIC 1 CELL BIOLOGY QUESTIONS AND ANSWERS COMPLETE STUDY GUIDE 2023 IB Biology Topic 1: Cell Biology 1. Cell theory: The theory that cells form the fundamental structural and functional units of all living organisms. 2. Differentiation: The expression of a particular gene(s) and not others in order for cell specialisation. 3. Emergent properties: The idea that the sum of an organism is more than the parts interacting and combining. Living things become more complex as they...

IB Biology - Unit 4 - Ecology SL/HL IB biology 11 SL Ecology topic. 2023 (A+) Species - Answer-A group of organisms that can interbreed and produce fertile offspring. Habitat - Answer-The environment in which a species normally lives or the location of a living organism. Population - Answer-A group of organisms of the same species who live in the same area at the same time. Two populations in the same species that are separated from each other may develop differences in character, b...

The notes for the IB course of Biology - TOPIC 4 & 5 ECOLOGY AND EVOLUTION - by an IB student of M22 achieving 45 points (7 for Biology predicted and achieved). Notes are handwritten and organized by subchapter. All you need to achieve a 7 in IB Biology is contained within the note-set for this chapter. Contains only relevant information that gets asked in exams and topic tests - summarized from the Companion Course-books (Pearson and Oxford). Perfect for revision purposes and final IB exams.

IB Biology Topic 4 Ecology summary to help study for IB exams

Exam Revision for IB Biology HL. Study summary notes based on syllabus, IB Biology textbook, and class notes. Covers topics 1-11: Topic 1: Cell Biology Topic 2: Molecular Biology Topic 3: Genetics Topic 4: Ecology Topic 5: Evolution and Biodiversity Topic 6: Human Physiology Topic 7: Nucleic Acids Topic 8: Metabolism, Cell Respiration and Photosynthesis Topic 9: Plant Biology Topic 10: Genetics and Evolution Topic 11: Animal Physiology *Does not cover options