EdBlog
Education tips, exam guides, parenting advice and the latest in EdTech — all from the Myedupady team.
Reproduction in Plants
Plants can't walk, talk, or search for a mate — so how do they reproduce? The answer is a fascinating set of strategies involving flowers, pollinators, wind, water, and even explosions. This guide covers everything you need: flower structure, pollination, fertilisation, seed and fruit formation, seed dispersal, and asexual reproduction in plants — all explained clearly, with diagrams and real examples.
Reproduction, Variation & Inheritance
Why do siblings look alike but not identical? Why does one sunflower grow taller than another, even from the same packet of seeds? Why do some genetic conditions run in families while others don't? The answers all connect back to three linked ideas in biology: reproduction, variation, and inheritance. This guide covers all three in detail, with diagrams and real examples to help the ideas stick — building on what you learned about the human reproductive system and menstrual cycle and cells. By the end of this post, you'll be able to: explain how reproduction leads to variation between offspring, describe the difference between continuous and discontinuous variation, and their causes, explain how scientists use twin studies to separate genetic from environmental causes, understand how genes, DNA, and chromosomes relate to each other, explain the difference between genotype and phenotype, explain how sex chromosomes determine whether a baby is male or female, understand mutation as a source of variation, use a Punnett square to predict inheritance, including for a real inherited condition, explain how humans use selective breeding to influence inheritance in other species.
Reproduction, the Human Reproductive System & the Menstrual Cycle
Reproduction is one of the most important life processes —it's how living things produce new individuals of the same species, so that life continues from one generation to the next. In this guide, we'll cover what you need to know for Year 7 science: reproduction in general, the human reproductive system (male and female), and the menstrual cycle — all explained clearly, with diagrams, so it's easy to revise and remember. This is a factual, science-based topic, and it's completely normal to feel a bit awkward learning about it for the first time — that's true for almost every student. Read it the same way you would any other body system, like the digestive or circulatory system. By the end of this post, you'll be able to: Explain what reproduction is and name the two types, label and describe the main organs of the male and female reproductive systems, describe the four stages of the menstrual cycle and answer 15 practice questions to check your understanding.
Cells, Unicellular Organisms & Levels of Organisation
If you've ever wondered what living things are actually made of, the answer starts with one tiny building block: the cell. This guide breaks down everything you need to know about cells, unicellular organisms, and the levels of organisation in living things. By the end of this post, you'll be able to: Explain what a cell is and why all living things are made of cells, compare unicellular (single-celled) and multicellular (many-celled) organisms, describe the levels of organisation and answer 15 practice questions to test your understanding
Photosynthesis: The Equation, Limiting Factors and Leaf Structure
Every meal you have ever eaten traces back to photosynthesis — the process by which plants convert light energy into glucose and oxygen. This complete guide covers the word and symbol equations for photosynthesis, the internal structure of a leaf and the function of every layer, the three limiting factors (light intensity, carbon dioxide concentration and temperature) and how they interact, the classic pondweed experiment, a comparison of photosynthesis and respiration, common mistakes to avoid, answers to frequently asked questions, and a 10-question multiple choice quiz with answers and explanations to test your understanding.
Cells: Animal Cells, Plant Cells, Cell Structure and Specialised Cells
Cells are the basic unit of all life — and understanding their structure is the foundation of everything else in biology. This complete guide covers the structure and function of animal cells and plant cells, a full comparison of the two, how to use the magnification formula, and detailed explanations of ten specialised cells including red blood cells, sperm cells, nerve cells, palisade mesophyll cells, root hair cells and guard cells — with adaptation explanations, common mistakes to avoid, answers to frequently asked questions, and a 10-question multiple choice quiz with answers and explanations to test your understanding.
Ecosystems, Food Chains and Food Webs
If you've ever wondered how plants, animals and even tiny bugs all fit together in nature, this guide is for you. We'll break down ecosystems, food chains, predators and prey, and why protecting nature matters
Ecosystems and Biodiversity: Interdependence and Competition
Nothing in nature exists in isolation. Every plant, animal, and microorganism is connected to everything else around it in a delicate web of dependence. Pull one thread and the entire web shifts. This guide explains exactly how ecosystems work, why every species matters, and what happens when organisms compete for survival.
Life Processes
Every living thing, from the smallest bacterium to the largest whale, must carry out seven essential processes to be considered alive. Scientists call these the life processes, and the easiest way to remember all seven is with the acronym MRS GREN: Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, and Nutrition. Movement means all living things can move some part of themselves, even plants. Respiration is the process inside every cell that converts food into usable energy. Sensitivity is the ability to detect and respond to changes in the environment. Growth is an irreversible increase in size and mass. Reproduction is how organisms produce offspring of the same species. Excretion removes toxic waste products from cells while Nutrition is how organisms obtain and use food to fuel everything else.
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