Parthenogenesis The development of the embryo from an unfertilized egg. The Endocrine System The endocrine system is a system of glands that secretes hormones into the bloodstream.
Sulphur dioxide and nitrogen oxides cause acid rain. Qualifications that are not reformed will cease to be available. Food is burnt in a closed container, and the temperature rise in the surrounding water is measured.
The lungs help the body take in oxygen and remove carbon dioxide.
Alternatively, students can take separate qualifications in chemistry, biology, and physics. Fertilisers and sewage cause eutrophication. Semi-lunar valves close after blood is pumped out of the ventricles to prevent blood from returning to the ventricles.
A triacylglyceride is formed by the esterification of one glycerol molecule and three fatty acids. Hemoglobin The red pigment which carries oxygen around the body, found in red blood cells.
Neurones are specialized cells that carry messages around the body in the form of electrical charges. For temperature, any increase above the optimum level causes the rate to slow, as high temperature denatures the enzymes.
Memory cells remain in the blood to produce more antibodies if the same antigen enters the body again. Water reaches the leaf cells and evaporates, passing out through the stomata by diffusion.
Hydrotropism — roots grow towards water. Decomposers Microorganisms that break down waste products and dead matter. Although photosynthesis does not occur during the night, it takes place much faster than respiration during the day.
Vaccines do not always give long-term protection. A milky white emulsion forms in the water if fat is present. United States[ edit ] In the United States of America USA the high school diploma is the qualification generally required for entry into colleges and universities.
If a mutation occurs in a gamete, Wjec coursework mark scheme offspring may develop abnormally and pass on the mutation to their own offspring. Chlorophyll The green pigment contained in the chloroplast that absorbs sunlight.
Biology Our tutorial lessons shall focus on teaching students to use scientific vocabulary when writing analysis, evaluation, and examination answers. Stomata Openings in the leaves of plants that allow gases to enter and leave the leaf.
However, Ofqual insists these students will not be disadvantaged. The Baccalaureate itself does not garner a certificate for students. Ofqual also says exam boards will use test results from national curriculum tests Sats taken at the end of primary school to predict the likely achievement at the new grades of one, four and seven.
The cell collapses and the plant wilts. Dr Szeto has been awarded numerous scholarships and prizes for both research and academic excellence. Animals compete for food, water, mates and territory.[title page] SCHOOL EXAMINATIONS. Report of the Steering Committee established to consider proposals for replacing the General Certificate of Education.
Course Companions, Revision Guides, Exam Practice for Secondary Schools from ZigZag Education. AQA provides qualifications that enable students to progress to the next stage in their lives. We also support teachers to develop their professional skills. OCR is a leading UK awarding body, providing qualifications for learners of all ages at school, college, in work or through part-time learning programmes.
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