Additionally, in my professional capacity I have seen a worrying number of students completely miss out Section A and go straight to the Option. The sciences are taught practically. This technique is also important on Paper 1. The red dots show the average rate and the blue bars show the range of readings taken. The information will pile up and soon enough there will be so much to learn, you will have to effectively self teach yourself the new information, which takes a lot more time and effort. The same logic can be applied to the concentration values. Changes involve both the species making up the community and their abiotic environment.
This counts for 20% of your grade, so do it well! Terminology is important in being able to write knowledgeable coherent responses relating to the Case Study. At the other end of the scale biologists investigate the interactions that make whole ecosystems function. The key thing is to recognise that the focus on these experiments in Paper 3 is not going to be on the calculations but more on the methodology adopted. This is really a question about experiment design. Whilst you may not have any influence on how often you are exposed to Section A-type questions, you can certainly make a big difference in the way you approach practical work and what information and understanding you can gain from it. These organisms are mutualistic, photosynthetic algae that are contained within coral reefs. I also found this to test your knowledge.
This increases the rate of ventilation, without altering the mechanism. The reason this section appears as difficult as it does is, principally, due to the lack of focus on the types of questions it contains during the teaching of the course coupled with the general attitude of students towards practical work and its importance. Paper 1 consists of multiple choice questions. Play attention to the , so you actually address what the question is asking. I made detailed notes from the textbook and the syllabus for each topic and then condensed them down into flashcards. In what type of cell? Measurements could be taken each week for a couple of months, or even longer. Any unauthorised copying or posting of materials on other websites is an infringement of our copyright and could result in your account being blocked and legal action being taken against you.
The Cane Toad was introduced in Australia in 1935 to control the Cane Beetle. Secondary in which there is or was an existing ecosystem, disturbed by an outside factor. But thats when I realised there was section A and i didnt do it. The danger of this belief as a student is that you spend too long preparing for the Option and, perhaps, only the Option before sitting the paper whilst neglecting preparation for Section A. An Rf value retardation factor can be calculated for a pigment which helps its identification.
These flashcards can either be classic paper flashcards or digitally in an app such as Quizlet or StudyBlue. It clogs pipes and can destroy docks and harbors as well as harming endemic species of the region. As you can imagine, there are simply hundreds of possible things to think about when doing a practical, but the main thing is that you make some effort to do so. It is in your best interest to: 1 complete all data-based questions for each lesson, and ask for feedback; and 2 incorporate drawings, pictures, etc. The albatross consume this plastic and feed it to their chicks, resulting in significantly high mortality rates. Was giddy when I saw aphids.
The movement of the water in the capillary tube would been measured using the apparatus. A biologist extracted green pigments from a crushed leaf. However, there is still quite a lot of similar content between the new syllabus and the old one. Respiration is a metabolic pathway controlled by enzymes, so the data gives us some information about the factors which affect enzymes. Whenever you have a free moment, skim through your notes to make them as familiar as possible to you.
Each pH would need several repeats to check the reliability of the results. What do you need to do to get the highest marks? The changes that transform ecosystems over time. Flairs Make sure to choose a flair for your username! You must choose a single Option and answer all the questions on it. Insecticide that was used widely in the mid-20th century for disease control by vectors such as insects and then as agricultural insecticide. It biomagnified in food chains, affecting the egg shells of birds and thus their populations suffered.
Marine plastic debris and macroplastic are major concerns for marine animals as they can be mistaken for food and ingested. Know the material and examples. They are the result of complex interactions between community and environment. Sometimes there is no obviously link between variables. Depending on the school you are enrolled in and the resources it has available you may find yourself well supported or on your own when it comes to the Option. Students will develop a strong foundational understanding of the nature of science and describe how newly acquired knowledge leads to new and different questions The site works the best using Google Chrome. Take the time to organize your response.
Coral-reef ecosystems are nutrient poor, and this represents a bottom-up limiting factor availability of resources to free-living algae population growth. I had a big smile when I saw liver being asked for the 6 point question. Options A and C Materials and Energy share content with the previous Options of Chemistry in Industry and Technology and Environmental Chemistry, Option B Human Biochemistry unsurprisingly has shared content with the old Biochemistry option and Option D Medicinal Chemistry has shared content with the old Medicines and Drugs option. Are you sure you know the difference between: describe, explain, outline, summarise, deduce, etc. The investigations may be laboratory based or they may make use of simulations and data bases.