The extreme challenges of life in the polar regions require the animals who make their habitat there to make many adaptations. This unit explores the polar climate and how animals like reindeer, polar bears, penguins, sea life and even humans manage to survive there. It looks at the adaptations to physiological proceses, the environmental effects on diet, activity and fecundity, and contrasts the strategies of aquatic and land-based animals in surviving in this extreme habitat. This unit builds on and develops ideas from two other 'Animals at the extreme' units: The desert environment (S324_1) and Hibernation and torpor (S324_2).
Do you want to get more out of your reading? This unit is designed to develop the analytical skills you need for a more in-depth study of literary texts. You will learn about narrative events and perspectives, the setting of novels, types of characterisation and genre.
Do fractions and decimals make you apprehensive about maths? Do you lack confidence in dealing with numbers? If so, then this unit is for you. The unit will explain the basics of working with positive and negative numbers and how to multiply and divide with fractions and decimals.
Scientific calculators are a wonderful invention, but they're only as good as the people who use them. If you often get an unexpected - or ridiculous - result when you press the"enter' button, this unit is for you. Learn how to do a calculation correctly and get the right answer every time.