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Propagule pressure plays an important role in species invasions (Groom, 2006). Charles Darwin was the first to study specific factors related to invasions of non-native species. In his research he identified that few members of the same genus were present in habitats containing naturalized non-indigenous species (Colautti et al., 2006).
Paper 1: Textual analysis (SL: 1 hour 30 minutes)/Comparative textual analysis (HL: 2 hours) (20 marks weighing 25% of the course) - SL candidates write an analytic commentary on one unseen text from a choice of two, and HL candidates write a comparative analytic commentary on one pair of unseen texts from a choice of two pairs.
The Review of Particle Physics [2] (formerly Review of Particle Properties, Data on Particles and Resonant States, and Data on Elementary Particles and Resonant States) is a voluminous, 1,200+ page reference work which summarizes particle properties and reviews the current status of elementary particle physics, general relativity and big-bang cosmology.
The Languages A2 were studied through Cultural Options and Literary Options, both of which must be included by the teacher in the two-year IB course. Study at the A2 level was available in a significantly lower number of languages than at other levels. Many bilingual institutions supplemented their regular curriculum with an English A2 ...
At the Standard Level, the examinations are respectively 45 minutes, 1 hour and 15 minutes, and 1 hour long. At the Higher Level, they are 1 hour, 2 hours and 15 minutes, and 1 hour and 15 minutes long. Calculators are not permitted for Paper 1, but they (as well as a provided formula booklet and periodic table) are permitted for papers 2 and 3.
The Group 3: Individuals and societies subjects of the IB Diploma Programme consist of ten courses offered at both the Standard level (SL) and Higher level (HL): Business Management, Economics, Geography, Global Politics, History, Information technology in a global society (ITGS), Philosophy, Psychology, Social and cultural anthropology, and World religions (SL only). [1]
Similarly to A&A, HL students sit for the additional Paper 3 that allows for the use of technology and that consists of two long questions. Paper 1 and Paper 2 differ in A&I in the style of questions asked: Paper 1 is made up of short, 5-9 marks questions, whereas Paper 2 has longer questions ranging from 14-18 marks.
IB Film can be taken at either the standard level (SL) or higher level (HL). For both levels of IB Film, the candidate must research and write an Independent Study, do a Practical Project and give an oral presentation, based on the close analysis of a 5-minute extract from a film prescribed by the IBO.