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Chromosomal and Gonadal Sex Determination
Depicts chromosomal and gonadal sex determination. Guide questions - What are the determinants of the sex of the offspring? What are sex chromosomes? What is the normal number of sex chromosomes in the human? What determines the sex chromosomes of the offspring? What is the critical "switch" gene for sexual differentiation and where is it normally located? What are the anatomical precursors of the gonads? What is the role of the Y-chromosome in determining gonadal sex? What is the sequence of mo
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Inventors - Quiz
Pupils will have a good knowledge of inventions and inventors.
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2.1 Introduction

In this section we will cover the following topics:

  • browsing for information on the Web;

  • searching for information on the Web;

  • using search engines;

  • bookmarking websites;

  • finding images on the Web;

  • how to reference sources.

Some of the material in this section has been drawn from Safari, an interactive website provided by the Open University Library.
Author(s): The Open University

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Copyright © 2016 The Open University

Mercury Playback Engine のためのシステムの最適化
このビデオでは最適なハードウェアの構成や、Mercury Playback Engineによる素晴らしいパフォーマンスについて紹介します。エフェクトが追加されたHDのフッテージが積み重なったようなビデオにおいても、レンダリングをすることなく再生が行えるような構成方法について学びます。
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Tampa-St. Petersburg True Color Time Lapse from SeaWiFS
Transitions between relatively cloud free true color scenes of the Tampa-St. Petersburg region from SeaWiFS
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Natural Disasters
Students are introduced to our planet's structure and its dynamic system of natural forces through an examination of the natural hazards of earthquakes, volcanoes, landslides, tsunamis, floods and tornados, as well as avalanches, fires, hurricanes and thunderstorms. They see how these natural events become disasters when they impact people, and how engineers help to make people safe from them. Students begin by learning about the structure of the Earth; they create clay models showing the Earth'
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Lesson 05 - One Minute Romanian
In lesson 5 of One Minute Romanian you will learn to say that you're learning Romanian. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Romanian at our website - http://www.oneminutelanguages.com. One Minute Romanian is brought to you by the Radio Lingua Network and is ©Copyright 2008.Author(s): No creator set

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What is Energy?
With an introduction to the ideas of energy, students discuss specific types of energy and the practical sources of energy. Hands-on activities help them identify types of energy in their surroundings and enhance their understanding of energy.
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Episode 94: Managing China's Water Challenges

Water engineer Prof John Langford discusses the immense challenges facing a China with swiftly mounting water demand and dwindling resources. With science host Dr Shane Huntington.