One of over 60 PowerPoint presentations (Sets 7 - 12) which together cover the Year 2 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. This presentation focuses on Disruptive, Stabilising and Directional forms of selection. N.B. Our other presentation ‘Natural Selection - 2a’ is only for AS AQA and does not contain Disruptive Selection. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 7 - 12) which together cover the Year 2 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the AS and Year 1 A Level topics for OCR (A) and Year 2 A level WJEC (Option A). This presentation is complemented by two others, i.e. 4.1.1 Immunology 2 - Specific Immunity - Humoral Response.pptx 4.1.1 Immunology 3 - Specific Immunity - Cellular Response & Vaccination.pptx • Utilizes the benefits of the staged display of information. • Enhances the specifications for OCR (A) & WJEC. • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Fully editable in PowerPoint (.pptx file supplied). • Suitable for a single computer, network, interactive whiteboard or digital projector. • Our presentations save you hours in the preparation of high quality lessons. N.B. The AQA and Edexcel (B) specifications for immunity differ substantially from those of OCR and WJEC in that the only component of the non-specific immune response covered is phagocytosis. Therefore if you teach AQA or Edexcel (B) please search this site for… 3.2.4 Immunology 1 – Introduction and Humoral Response 3.2.4 Immunology 2 – Cellular Response & Vaccination Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the new AS and Year 1 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the new AS and Year 1 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the new AS and Year 1 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together support any AS/A Level (Year 1) or Level 3 Biology course. Also see ‘3.3.4.2 Water Transport in Plants - 2 (Transpiration & The Potometer)’ to complement this presentation and to offer full topic coverage. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the AS and Year 1 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 7 - 12) which together cover the Year 2 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

A detailed spreadsheet providing both one-tailed and two-tailed options – can be used with your own data. Integral ‘help’ and example data are provided as well as critical values. Complements our presentation 3.7.4 Statistics - Rocky Shore Fieldwork - Student’s t-Test (sold separately).

This is one of four sets of crosswords (10 crosswords/set), which together, reinforce many of the core topics covered in any Biology course for students aged 16-19. • Directly targets key terms & definitions in an enjoyable way. • Both print masters and answer sheets (useful as a glossary) are provided. Suitable for homework or classwork and ideal for an informal assessment. Also valuable as self-assessment for students throughout a revision program. The ‘clues’ offer detailed, yet succinct, definitions and descriptions of the terms. Set 1 Topics: • Biological Molecules - 1 • Biological Molecules - 2 • Cells & Cell Structures • Digestion • Enzymes • Meiosis and Gametes • Microbes and Disease • Mitosis & The Cell Cycle • Plasma Membranes & Cell Transport - 1 • Plasma Membranes & Cell Transport - 2 A free sample crossword and answer sheet is available from… https://www.tes.com/teaching-resource/crossword-gas-exchange-in-fish-insects-and-plants-answers-provided-11237190 To offer an enhanced preview the pages are also shown as images (*.png files). You do not need to retain these images after download - just keep the .pdf files.

This is one of four sets of crosswords (10 crosswords/set), which together, reinforce many of the core topics covered in any Biology course for students aged 16-19. • Directly targets key terms and definitions in an enjoyable way. • Both print masters and answer sheets (useful as a glossary) are provided. Suitable for homework or classwork and ideal for an informal assessment. Also valuable as self-assessment for students throughout a revision program. The ‘clues’ offer detailed, yet succinct, definitions and descriptions of the terms. Set 4 Topics: • DNA & Protein Synthesis - 1 • DNA & Protein Synthesis - 2 • Enzyme Technology • Energy Transfer & Cycles • Ecology - Sampling Techniques & Diversity • Gene Technology • Genetics & Inheritance - 1 • Genetics & Inheritance - 2 • Photosynthesis • Respiration A free sample crossword and answer sheet is available from… https://www.tes.com/teaching-resource/crossword-gas-exchange-in-fish-insects-and-plants-answers-provided-11237190 To offer an enhanced preview the pages are also shown as images (*.png files). You do not need to retain these images after download - just keep the .pdf files.

One of 81 interactive PowerPoint presentations (Sets 1-7) in the Edexcel Biology GCSE specification (2BI01). This presentation is from our Set 7, which focuses on B3 Topic 2 of the specification covering the topic of Human Evolution (also in the 2016 Gateway Specification). Already used in hundreds of UK and international schools. This presentation concentrates on the following hominids: Ardipithecus ramidus (Ardi), Australopithecus afarensis (Lucy), Homo habilis (Turkana Boy), Homo erectus, Homo neanderthalensis and Homo sapiens. • Utilizes the benefits of the staged display of information. • Supports & enhances the specifications for Edexcel (B). • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Suitable for a single computer, network, interactive whiteboard or digital projector. • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover AS and Year 1 topics for any A Level or Level 3 course in Biology. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together support any AS/A Level (Year 1) or Level 3 Biology course. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the AS and Year 1 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. This presentation focuses on this aspect of animal behaviour as one aspect of sexual reproduction. There are only 10 ‘topics’ currently offered by this TES store for A Level Biology and this presentation, like others on evolution and natural selection, etc does not ‘fit’, hence the inappropriate use of the topics ‘Ecology’ and ‘Scientific Methodology’. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 7 - 12) which together support any A Level (Year 2) or Level 3 Biology course. For worksheets and answers see our complementary 39 page workbook and 39 page answer booklet ‘3.7.1 Genetics - Workbook & Answers’ (MS Word .doc format) - supports this presentation and four others on genetics. • utilizes the benefits of the staged display of information. • suitable for a single computer, network, interactive whiteboard or digital projector. • fully editable in PowerPoint (.pptx file supplied), html5 compliant and cross platform ready, e.g. Windows, Mac OS, iOS and Android. • 47 slides – featuring superb, informative graphics and a downloadable worksheet (two .doc files). • used in hundreds of UK and International Schools, our presentations save you hours in the preparation of high-quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png or .jpg files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file and the two .doc files.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the AS and Year 1 A Level topics for AQA and the relevant Year 2 A level topic for Edexcel (B). This presentation is complemented by ‘3.2.4 Immunology 2 – Cellular Response & Vaccination’. The introduction section follows on from GCSE and sets the scene for both specific and non specific immunity. Although the only component of the non-specific immune response stated by AQA and Edexcel (B) is phagocytosis I feel that some mention of physical and chemical barriers is required for an holistic understanding of non specific immunity. It is the OCR and WJEC versions of our immunology presentations that include details (at A level standard) of non specific responses such as blood clotting, inflammation, mast cells, etc. • Utilizes the benefits of the staged display of information. • Enhances the specifications for AQA and Edexcel (B). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Fully editable in PowerPoint (.pptx file supplied). • Suitable for a single computer, network, interactive whiteboard or digital projector. • Our presentations save you hours in the preparation of high quality lessons. N.B. The OCR (A) and WJEC specifications for immunity differ substantially from those of AQA and Edexcel (B) in that the only component of the non-specific immune response covered by AQA and Edexcel (B) is phagocytosis. The OCR (A) and WJEC specifications require a thorough coverage of all aspects of non specific immunity. Therefore if you teach OCR (A) or WJEC please search this site for… 4.1.1 Immunology 1 - Non Specific Immunity.pptx 4.1.1 Immunology 2 - Specific Immunity - Humoral Response.pptx 4.1.1 Immunology 3 - Specific Immunity - Cellular Response & Vaccination.pptx Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the new AS and Year 1 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.

One of over 60 PowerPoint presentations (Sets 1 - 6) which together cover the new AS and Year 1 A Level topics for AQA, OCR, Edexcel, WJEC and other exam boards. • Utilizes the benefits of the staged display of information. • Suitable for a single computer, network, interactive whiteboard or digital projector. • Fully editable in PowerPoint (.pptx file supplied). • Works on all operating systems where MS PowerPoint has been installed, e.g. Windows, Mac OS, iOS and Android (this presentation is flash-free). • Our presentations save you hours in the preparation of high quality lessons. Currently, the TES store for Premium Resources only allows a PowerPoint preview to consist of one content slide plus the Cover Slide and End Slide. Therefore, we have included a full set of slide images (.png files) to allow you to appreciate the full content of this presentation - you do not need to retain these images after download - just keep the .pptx file.