Specialised activity Study guides, Revision notes & Summaries

EXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024 Why do multicellular organisms need specialised exchange surfaces but single celled organisms don't? - ANSWER single celled organisms can exchange materials across their CSM to meet requirements - metabolic activity low → O2 needs low + CO2 produced is low - large SA:V ratio Multicellular organisms are the opposite - high metabolic rate (active + maintain temp) - small SA:V ratio 3 main features of an efficient exchange surface - ...

AQA A Level Psychology: Biopsychology Questions and Answers Graded A+ Localisation of function Theory that states that different areas of the brain are responsible for different behaviours, processes or activities. Motor area Back of frontal lobe, involved in regulating movement. Somatosensory area Front of both parietal lobes, processes sensory information such as touch. Parts of the brain: Visual area. Occipital lobe, receives and processes visual information. Parts of the brain: Auditory ...

Business Unit 1 WJEC AS level Questions with Accurate Answers 2023 fixed costs Costs that do not vary with the quantity of output produced Semi-variable costs Costs that vary somewhat based on the number of units you sell. Qualities of an entrepreneur -Hard working- Have to work long hours and have few vacation days -Risk taker- Making decisions to produce goods or services that people might buy is potentially risky -Creative- A new business needs new ideas about products , s...

EXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024 Why do multicellular organisms need specialised exchange surfaces but single celled organisms don't? - ANSWER single celled organisms can exchange materials across their CSM to meet requirements - metabolic activity low → O2 needs low + CO2 produced is low - large SA:V ratio Multicellular organisms are the opposite - high metabolic rate (active + maintain temp) - small SA:V ratio 3 main features of an efficient exchange surface - ...

AQA A-Level Biology Paper 3 Predicted Paper 2023 with marking scheme Name …………………………………………………………………… Date ………………… 2 hours allowed. You may use a scientific calculator and a ruler with millimetre measurements. Answer all questions in section A. Answer one question from section B. Grade boundaries These are VERY rough guesses! Getting a B on this paper does not guarantee you the same mark in the exam. • ...

AQA GCSE COMBINED SCIENCE: TRILOGY 8464/B/1H Biology Paper 1H Question Paper + Mark scheme [MERGED] June 2022 *junb1h01* IB/M/Jun22/E14 8464/B/1H For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all...

Definition of Health WHO developed a holistic definition of health to be "A complete state of physical, mental and social well-being, and not merely just the absence of disease or infirmity" This has been adopted as the holistic view of health. Dimensions of Health Physical, Social, Emotional, Mental and Spiritual. Physical Health - is the wellness of the body (eg. nutrition, strength) Social Health - is the way you interact with others (eg. relationships, communication) E...

lesson planning The most natural strategy for dealing with different levels is to encourage group work and also pair stronger students with weaker students. This type of differentiation will allow both, gifted and talented children, and weaker students to flourish together. It's good to remember that we all develop at different speeds throughout our lives and it's natural fPlanning a lesson is crucial to your success and planning will allow you to relax more and more, showing your true person...

Why do multicellular organisms need specialised exchange surfaces but single celled organisms don't? - ANSWER single celled organisms can exchange materials across their CSM to meet requirements - metabolic activity low → O2 needs low + CO2 produced is low - large SA:V ratio Multicellular organisms are the opposite - high metabolic rate (active + maintain temp) - small SA:V ratio 3 main features of an efficient exchange surface - ANSWER • increased surface area • thin layer • ...

AQA A-Level Biology Paper 3 Predicted Paper 2023 attached with marking scheme Name …………………………………………………………………… Date ………………… 2 hours allowed. You may use a scientific calculator and a ruler with millimetre measurements. Answer all questions in section A. Answer one question from section B. Grade boundaries These are VERY rough guesses! Getting a B on this paper does not guarantee you the same mark in the exam. ...