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Hormones Involved In Birth Control & Fertility Treatment
In this video we are going to look at how these hormones can be used in contraception and compare them to non-hormonal methods. We are also going to look at the use of hormones in treating infertility. Female fertility is controlled by...
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What Is The Water Cycle
Science, Chemistry, learn, Revision, GCSE, Alevels, AQA, students free online courses video science videos, student, fuseschool, global education, ict4d, Water (Chemical Compound), Water Cycle, Environmental Chemistry (Field Of Study),...
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BIOLOGY - Evolution - Evidence for Natural Selection
Fossils discovered within rocks led scientists to begin to change their ideas on the creation of life on earth. Charles Darwin's 5 year voyage on HMS Beagle led to him collecting different flora and fauna from the countries he visited....
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Sperm and Eggs Cells
In this video we learn about the distinct differences of egg and sperm cells, which are also known as gametes. We will see how the chromosomes from each cells come together to form our unique genetic code. The gametes (sperm and egg...
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BIOLOGY - Genetics - Stem Cells
Our bodies are the ultimate factory. Every cell has its specific job to do, and is shaped to do that job perfectly. The fate of each cell is determined during the embryo stage, and then cannot be changed. However, cutting-edge research...
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Landfill
Learn the basics about Landfill. What causes landfill? How does it affect the environment? Find out more in this video!
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Photosynthesis & Respiration
Learn the basics about Photosynthesis and respiration. What is Photosynthesis? How do plants make their own food? Find out more in this video!
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What Is The Menstrual Cycle?
Woman between the ages of 12 and 50 years old undergo a monthly cycle in which their uterus prepares for pregnancy; it prepares for a fertilised egg to settle and grow into a baby. If pregnancy does not occur, the lining breaks down and...
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Properties Of Water
Learn the basics about Properties of water. What are the properties of water? What is water made of? Find out more in this video!
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Punnett Squares
Mendel proposed that you inherit a gene either from your mother, or from your father. But not a mixture of both. In this video we are going to look at monohybrid crosses using Punnett squares. A monohybrid cross is the study of the...
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Parasites And Hosts
Let's learn all about parasites. Parasites are organisms that live on or in other organisms! This is known as the host organism. The relationship can be mutually beneficial - so is good for both species. Or it can have a negative impact...
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Culturing Microorganisms Part 1
Bacteria are a type of microorganism. If they have enough nutrients and are in a suitable temperature, bacteria can multiply once every 20 minutes. So, after one hour a single bacterium could have reproduced to give eight bacteria. They...
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What Are Intermolecular Forces
Learn what intermolecular forces are, the three most common types and the differences between them. An intermolecular force is simply an attractive force between neighbouring molecules. There are three common types of intermolecular...
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BIOLOGY - Cells - Active Transport
In the first part of this video we looked at diffusion to move gases and osmosis for the movement of water, from high concentration to low concentration down their concentration gradient. Active transport works in the opposite direction;...
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What Are Hormones
A hormone is a chemical messenger that is secreted (or released) into our bloodstream by specific organs known as glands. Hormones regulate (or control) many processes in our body, including blood glucose levels, water content in blood,...
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Puberty: The Hormones Involved
Hormones are chemical messengers secreted by glands and have specific target organs. In this lesson, you will learn about hormones that stimulate changes to your body during puberty. Puberty is the timeframe when secondary sexual...
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What is Brownian motion?
Learn the basics about what is the Brownian motion? what is it used for? Find out more in this video!
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Differences Between Natural & Artificial Ecosystems
An ecosystem can be defined as a large, highly interconnected area of the planet that is composed of several different biotic and abiotic components. A good example of an ecosystem would be an entire forest or mountain range. A natural...
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Understanding Meiosis: The Key to Genetic Diversity
This video explains the process of meiosis, which is essential for sexual reproduction. It details how cells undergo two rounds of division to produce four genetically diverse sex cells with only half the number of chromosomes. Through...
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BIOLOGY - Environment - What is an ecosystem
In this video you'll learn all about ecosystems and how energy is transferred between organisms living together it the same environment.
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BIOLOGY - Environment - Interactions within ecosystem
Ecosystems are large, often highly complex areas of our environment. In this video we learn how abiotic and biotic factors interact with one another in a ecosystem, how trophic levels work, and how various factors in an ecosystem lead to...
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What Are Vaccinations?
Vaccinations protect both humans and animals from a wide range of preventable and potentially serious illnesses. With vaccines, we take advantage of one of the most important aspects of the immune system: the ability to develop...
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What Is Avogadro's Number - The Mole
Learn the basics about Avogadro's Number, as a part of chemical calculations. Avogadro’s Number or the Avogadro Constant is 6.02 X 1023 Mol-1. It is the number of atoms per mole of the carbon-12 isotope. For atoms, the mass of Avogadro’s...
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Avogadro's Number - The Mole
Learn the basics about Avogadro's number - The Mole. What is Avogrado's number? Why is it called like that and what relation does it have to the mole? Find more in this video!