GCSE Revision: Adaptations| kingsnews

GCSE BIOLOGY REVISION: ADAPTATIONS

Please note : text in bold is what the AQA GCSE biology stipulation requires an reason of .

Students should be able to explain how organisms are adapted to live in their natural environment, given appropriate information.

Questions based on this area of the specification will be expecting you to use information that you have previously to apply to the specific question. here you should only give relevant points. They are not questioning how much you can remember, they want to know whether you understand what you have learnt thus that it can be applied. The best manner to get estimable at these types of questions is strictly through practice. Find yourself questions from school, your textbook, rewrite guides or past newspaper questions. You can tied use different exam dining table questions as all examination boards hold the same principles helping you to gain valuable skills. Through learning some font study examples, you will become familiar with the purpose of certain adaptations and should be able to recognise them if the question gives you a picture of the organism. Remember, think what type of environment the animal lives in. The motion may ask you for adaptations but they are actually asking for useful adaptations, there is no point number features that are not beneficial to survival. It is critical that you read the question carefully .

Organisms have features (adaptations) that enable them to survive in the conditions in which they normally live. These adaptations may be structural, behavioural or functional.

It is significant to know the difference between structural, behavioral and functional adaptations. You will be credited 0 marks if the doubt asks you for 2 geomorphologic adaptations and you give 2 functional. Again, they are not testing whether you can do fact recall, they want to know that you know the difference between different adaptations. structural adaptations are physical features of an organism, like having a tail. behavioral adaptations are the things that an organism does to survive, these are learn actions. functional adaptations are those that help the organism to survive, the difference being that they are congenital functions. This means they are not learn, for case, a plant being able to photosynthesise is a functional adaptation .

Types of adaptations examples :

Structural- streamlined body, furr, long neck
Behavioural- coupling dance, migration
Functional- semblance change, camouflage

Some exemplar animals to consider determine : camels, arctic bears, marsupial moles, placental mammals, marsupial kangaroo, chameleons, penguins…. The specification does not require you to learn loads, but learning supernumerary examples will do no injury ! You have probably been given effective examples in your lessons .
Some organisms live in environments that are very extreme, such as at high temperature, pressure, or salt concentration. These organisms are called extremophiles. Bacteria living in deep sea vents are extremophiles.

Make sure that you able to define extremophiles or recognise that an organism is one. They live in extreme conditions that the majority of organisms can not survive in, this is because they are particularly adapted to do so. Thermophiles are extremophiles adapted to living in identical hot temperatures. Halophiles thrive in high strategic arms limitation talks concentrations. You will not be expected to know the names of different extremophiles, that ’ s just a little extra cognition !

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