The role of negative feedback lesson created in accordance to the NEW AQA Specification (9-1) for my separates class (Year 10-KS4). This content is for HIGHER TIER only. Includes: slide animations, embedded video, practice exam question with mark scheme. This resource is suitable for combined science students. May needed to be edited for foundation students. AQA spec link: 5.3.7 Relevant chapter: B11 Hormonal coordination. AQA Biology third edition textbook-Page 166-167. Specification requires students to know the following; Students should be able to explain the roles of thyroxine and adrenaline in the body. Adrenaline is produced by the adrenal glands in times of fear or stress. It increases the heart rate and boosts the delivery of oxygen and glucose to the brain and muscles, preparing the body for ‘flight or fight’. Thyroxine from the thyroid gland stimulates the basal metabolic rate. It plays an important role in growth and development. Thyroxine levels are controlled by negative feedback.

Adult cell cloning lesson created in accordance to the NEW AQA Specification (9-1). Designed for higher ability separates class, although content can be adjusted to suit any ability. Includes: embedded videos and timers, slide animations, practice questions with answers on slides, worksheet and an interactive quiz. NB: If you are unable to play videos a URL link can be found in the slide notes. NB: This lesson is for SEPARATE science ONLY AQA spec link: 4.6.2.5 Relevant chapter: B14 Variation and evolution. AQA Biology third edition textbook-Page 228-229. Students are required to know the following; Adult cell cloning: • The nucleus is removed from an unfertilised egg cell. • The nucleus from an adult body cell, such as a skin cell, is inserted into the egg cell. • An electric shock stimulates the egg cell to divide to form an embryo. • These embryo cells contain the same genetic information as the adult skin cell. • When the embryo has developed into a ball of cells, it is inserted into the womb of an adult female to continue its development. WS 1.3, 1.4 Explain the potential benefits and risks of cloning in agriculture and in medicine and that some people have ethical objections. There are links with this content to Advantages and disadvantages of sexual and asexual reproduction (biology only) and Selective breeding.

Competition in animals lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. Includes powerpoint timers, slide animations, embedded video’s and mini review. NB: If you are unable to play embedded videos please view slide notes for link. AQA spec link: 4.7.1.1 Relevant chapter: B16 Adaptations, interdependence and competitions. AQA Biology third edition textbook-Page 264-265 Students are required to know the following; Students should be able to describe: • different levels of organisation in an ecosystem from individual organisms to the whole ecosystem • the importance of interdependence and competition in a community. Students should be able to, when provided with appropriate information: • suggest the factors for which organisms are competing in a given habitat • suggest how organisms are adapted to the conditions in which they live. An ecosystem is the interaction of a community of living organisms (biotic) with the non-living (abiotic) parts of their environment. To survive and reproduce, organisms require a supply of materials from their surroundings and from the other living organisms there.

Maintaining biodiversity lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. This lesson Includes powerpoint timers, slide animations, circus activity, self-assessment, interactive mark scheme, embedded videos and review. For general enquiries or support please email: Paperfriendlyresources@gmail.com ***Paper friendly tips: Print slides 16-23 as two slides per handout, you will only need two copies and can place these around your laboratory. Also print slide 11 approx 1 between 2-3. NB: If you are unable to play embedded videos please view slide notes for link. * AQA spec link: 4.7.3.6 Relevant chapter: B18 Biodiversity and ecosystems. AQA Biology third edition textbook-Page 298-299 Students are required to know the following; Students should be able to describe both positive and negative human interactions in an ecosystem and explain their impact on biodiversity. Scientists and concerned citizens have put in place programmes to reduce the negative effects of humans on ecosystems and biodiversity. These include: • breeding programmes for endangered species • protection and regeneration of rare habitats • reintroduction of field margins and hedgerows in agricultural areas where farmers grow only one type of crop • reduction of deforestation and carbon dioxide emissions by some governments • recycling resources rather than dumping waste in landfill. WS 1.4, 1.5 Evaluate given information about methods that can be used to tackle problems caused by human impacts on the environment. Explain and evaluate the conflicting pressures on maintaining biodiversity given appropriate information.

Material cycling lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. Includes powerpoint timers, slide animations, embedded video’s and mini review. NB: If you are unable to play embedded videos please view slide notes for link. AQA spec link: 4.7.2.2 Relevant chapter: B16 organising an ecosystem. AQA Biology combined edition textbook-Page 226-227 Students are required to know the following; Explain the importance of the carbon and water cycles to living organisms. All materials in the living world are recycled to provide the building blocks for future organisms. The carbon cycle returns carbon from organisms to the atmosphere as carbon dioxide to be used by plants in photosynthesis. The water cycle provides fresh water for plants and animals on land before draining into the seas. Water is continuously evaporated and precipitated. Students are not expected to study the nitrogen cycle. Students should be able to explain the role of microorganisms in cycling materials through an ecosystem by returning carbon to the atmosphere as carbon dioxide and mineral ions to the soil.

Germination Practical (RP 8). This practical was completed in 2 lessons. Students are required to collect data outside of lesson time. I’ve attached both lessons, mock data (lesson 2) and a sign in sheet so you can create your own groups and student rota. Good luck! Lesson 1: Demo provided, students set up their practical, three conditions were created; full light-by windowsill, partial light-underneath windowsill and darkness-cupboard. The remainder of the lesson was spent discussing how to collect data, the student rota was explained. Students also used this time to assign roles to one another. Opportunity to collect data at break/lunch over 7 days (excluding weekends). Lesson 2: Interpreting data, working out averages, plotting graph, biological drawings. Conclusion and evaluation of practical was given as homework. Overall, this practical was very easy to set up but very fiddly to organise. Students need to take active approach as this practical needs to be done over 7 consecutive days, ownership to students. Mustard seeds were quick to germinate but were very poor at demonstrating phototropism. I would probably use coriander seeds next time. Also in the dark condition shoots grew very long, this confused students as light was absent (due to Etiolation), to complex for GCSE students to comprehend. Spec ref: 5.4.1 Required practical: Investigate the effect of light or gravity on the growth of newly germinated seedlings. Record results as both length measurements and as careful, labelled biological drawings to show the effects.

NB: This is a BIOLOGY (SEPARATES) ONLY lesson Plant defence responses lesson created in accordance to the NEW AQA Specification (9-1). Includes: slide animations, embedded videos, differentiated questions, answers have also been included within the slides. This resource is NOT suitable for combined science students. AQA spec link: 4.3.3.2 Relevant chapter: B5-Communicable diseases . AQA Biology third edition textbook-Page 94-95. Students should be able to describe physical and chemical plant defence responses. Physical defence responses to resist invasion of microorganisms: • Cellulose cell walls. • Tough waxy cuticle on leaves. • Layers of dead cells around stems (bark on trees) which fall off. Chemical plant defence responses: • Antibacterial chemicals. • Poisons to deter herbivores. Mechanical adaptations: • Thorns and hairs deter animals. • Leaves which droop or curl when touched. • Mimicry to trick animals.

Please note that I have merged the content of two lessons into one resource. Trophic levels and biomass transfers lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. This lesson Includes powerpoint timers, slide animations, past paper questions, self-assessment, interactive mark scheme, embedded videos and review. For general enquiries or support please email: Paperfriendlyresources@gmail.com NB: If you are unable to play embedded videos please view slide notes for link. * AQA spec link: 4.7.4; 1, 2, 3 Relevant chapter: B18 Biodiversity and ecosystems. AQA Biology third edition textbook-Page 300-301 Students are required to know the following; 7.4.1 Students should be able to describe the differences between the trophic levels of organisms within an ecosystem. Trophic levels can be represented by numbers, starting at level 1 with plants and algae. Further trophic levels are numbered subsequently according to how far the organism is along the food chain. Level 1: Plants and algae make their own food and are called producers. Level 2: Herbivores eat plants/algae and are called primary consumers. Level 3: Carnivores that eat herbivores are called secondary consumers. Level 4: Carnivores that eat other carnivores are called tertiary consumers. Apex predators are carnivores with no predators. Decomposers break down dead plant and animal matter by secreting enzymes into the environment. Small soluble food molecules then diffuse into the microorganism. 7.4.2 Pyramids of biomass can be constructed to represent the relative amount of biomass in each level of a food chain. Trophic level 1 is at the bottom of the pyramid. Students should be able to construct accurate pyramids of biomass from appropriate data. 7.4.3 Students should be able to: • describe pyramids of biomass • explain how biomass is lost between the different trophic levels. Producers are mostly plants and algae which transfer about 1% of the incident energy from light for photosynthesis. Only approximately 10% of the biomass from each trophic level is transferred to the level above it. Losses of biomass are due to: • not all the ingested material is absorbed, some is egested as faeces • some absorbed material is lost as waste, such as carbon dioxide and water in respiration and water and urea in urine. Large amounts of glucose are used in respiration. Students should be able to calculate the efficiency of biomass transfers between trophic levels by percentages or fractions of mass. Students should be able to explain how this affects the number of organisms at each trophic level.

Please note that this resource contains two lessons worth of content. Factors affecting food security and making food production efficient lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. This lesson Includes powerpoint timers, slide animations, past paper questions, self-assessment, interactive mark scheme, embedded videos and review. For general enquiries or support please email: Paperfriendlyresources@gmail.com NB: If you are unable to play embedded videos please view slide notes for link. * AQA spec link: 4.7.5; 1, 2, 3 Relevant chapter: B18 Biodiversity and ecosystems. AQA Biology third edition textbook-Page 304-307 Students are required to know the following; 7.5.1 Students should be able to describe some of the biological factors affecting levels of food security. Food security is having enough food to feed a population. Biological factors which are threatening food security include: • the increasing birth rate has threatened food security in some countries • changing diets in developed countries means scarce food resources are transported around the world • new pests and pathogens affect farming • environmental changes affect food production, such as widespread famine occurring in some countries if rains fail • cost of agricultural inputs • conflicts have arisen in some parts of the world over the availability of water or food. Sustainable methods must be found to feed all people on Earth. 7.5.2 The efficiency of food production can be improved by restricting energy transfer from food animals to the environment. This can be done by limiting their movement and by controlling the temperature of their surroundings. Some animals are fed high protein foods to increase growth. 7.5.3 Fish stocks in the oceans are declining. It is important to maintain fish stocks at a level where breeding continues or certain species may disappear altogether in some areas. Control of net size and the introduction of fishing quotas play important roles in conservation of fish stocks at a sustainable level.

Deforestation and peat destruction lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. This lesson also contains working scientifically activities that requires students to improve scientific methods, choose suitable techniques and equipment. This lesson Includes powerpoint timers, slide animations, self-assessment, homework (may be used as mini-assessment), mark scheme, embedded video’s and review. For general enquiries or support please email: Paperfriendlyresources@gmail.com ***Paper friendly tips: Print the homework sheets as two pages to one A4 side-double sided. Alternatively you can email the homework to students to complete on laptops/desktops. You do not need to print the mark scheme. NB: If you are unable to play embedded videos please view slide notes for link. * AQA spec link: 4.7.3.3, 3.4 Relevant chapter: B18 Biodiversity and ecosystems. AQA Biology third edition textbook-Page 292-293 Students are required to know the following; 7.3.3 Humans reduce the amount of land available for other animals and plants by building, quarrying, farming, and dumping waste. The destruction of peat bogs, and other areas of peat to produce garden compost, reduces the area of this habitat and thus the variety of different plant, animal, and microorganism species that live there (biodiversity). The decay or burning of the peat releases carbon dioxide into the atmosphere. 7.3.4 Large-scale deforestation in tropical areas has occurred to: • provide land for cattle and rice fields • grow crops for biofuels.

Competition in plants lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. Includes powerpoint timers, slide animations, embedded video’s and mini review. NB: If you are unable to play embedded videos please view slide notes for link. AQA spec link: 4.7.1.1 Relevant chapter: B16 Adaptations, interdependence and competitions. AQA Biology third edition textbook-Page 266-267 Students are required to know the following; Plants in a community or habitat often compete with each other for light and space, and for water and mineral ions from the soil. Animals often compete with each other for food, mates and territory. Within a community each species depends on other species for food, shelter, pollination, seed dispersal etc. If one species is removed it can affect the whole community. This is called interdependence. A stable community is one where all the species and environmental factors are in balance so that population sizes remain fairly constant. Students should be able to extract and interpret information from charts, graphs, and tables relating to the interaction of organisms within a community.

Adaptations in plants lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class, although content can be adjusted to suit any ability. Includes powerpoint timers, slide animations, embedded video’s and mini review. NB: If you are unable to play embedded videos please view slide notes for link. AQA spec link: 4.7.1.4 Relevant chapter: B16 Adaptations, interdependence and competitions. AQA Biology third edition textbook-Page 272-273 Students should be able to explain how organisms are adapted to live in their natural environment,given appropriate information.

Making the most of photosynthesis lesson created in accordance to the NEW AQA Specification (9-1). Designed for a higher ability class and HIGHER TIER ONLY students. You will require access to computers/tablets for this lesson as it is heavily research based. You may decide to set this part of the spec as homework although my students thoroughly enjoyed designing the most affordable greenhouse. * NB: If you are unable to play embedded videos please view slide notes for link. Enjoy this lesson for free as a token of appreciation for all the hard work you've done this term :) AQA spec link: 4.4.1.2 Relevant chapter: B8 Photosynthesis. AQA Biology third edition textbook-Page 128-129 Students are required to know the following; Limiting factors are important in the economics of enhancing the conditions in greenhouses to gain the maximum rate of photosynthesis whilst still maintaining profit.

To use a light microscope to observe, draw and label a selection of plant and animal cells. AQA spec link: 4.1.1.5 Relevant chapter: B1 Cells and organisation. AQA Biology third edition textbook-Page 4-5 In doing this practical students should cover these parts of the apparatus and techniques requirements. Biology AT 1 – use appropriate apparatus to record length and area. Biology AT 7 – use a microscope to make observations of biological specimens and produce labelled scientific drawings

Measure the population size of a common species in a habitat. Use sampling techniques to investigate the effect of a factor on the distribution of this species. This lesson was conducted outdoors hence why a powerpoint was not created. This investigation has two parts: Investigating the population size of a plant species using random sampling Investigating the effect of a factor on plant distribution using a transect line. AQA spec link: 4.7.2.1 Relevant chapter: B16 Adaptations, interdependence and competition. AQA Biology third edition textbook-Page 262-263 In doing this practical students should cover these parts of the apparatus and techniques requirements. AT 1 – use appropriate apparatus to record length and area. AT 3 – use transect lines and quadrats to measure distribution of a species. AT 4 – safe and ethical use of organisms and response to a factor in the environment. AT 6 – application of appropriate sampling techniques to investigate the distribution and abundance of organisms in an ecosystem via direct use in the field. AT 8 – use of appropriate techniques in more complex contexts including continuous sampling in an investigation.