Transcript plantandanimaladaptionskp

Title and LO: How do plants and
animals adapt to desert environments?
Is this the
‘perfect’ desert
plant?
http://www.bbc.co.uk/learningzone/clips/plantadaptations-extreme-heat/5514.html
Eucalyptus and koalas
http://www.youtube.com/watch?v=a140UkjcQac
Musical intro
Is this the perfect’ desert animal?
http://www.bbc.co.uk/learningzone/clips/animal-adaptations-to-ahot-climate/5509.html
Kangaroos and emus
Notes on plant adaption to
arid area. - Succulence;
Notes on plant adaption to
arid area.
Drought Avoidance
Notes on plant adaption to arid area.
Drought tolerance
Drought avoidance plants such as this
Brittlebrush often shed their leaves during dry
periods and become dormant for a long time.
Animal notes;
Animal notes;
Animal notes;
Bilby
Red Kangaroo
Perentie Lizard
Two ways in which it survives are.;
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Two ways in which it survives are.
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Two ways in which it survives are.
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Kangaroos are uniquely adapted to life in a country that suffers frequent droughts.
•The mother kangaroo spends most of her adult life pregnant, but in drought times, she has the ability to
indefinitely "freeze" the development of the young embryo until food sources are replenished.
•The mother can also produce two different types of milk to suit the needs of two different aged joeys. She
might have a more mature joey that spends less time in the pouch, while a very young embryo has
attached itself to a teat. Each joey has different milk requirements - which the mother is able to supply.
•Kangaroos are able to travel long distances at a high speed, expending very little energy. They are very
energy-efficient, and this is linked directly to the physical action of bringing their hind legs up with each
hop. Every hop literally refills the lungs.
•Kangaroos have large, strong tendons in their hind legs which act as "springs". The springing motion
requires less energy than running does, so kangaroos are able to bound for longer distances than other
mammals with the standard four legs can run. They have strong back legs and elongated hind feet for
bounding.
•Kangaroos are more active in the cooler hours of the early morning and the late afternoon. During the
heat of the day they are more sedentary, lying around quietly and chewing their cud.
•Kangaroos have the ability to hear very well: kangaroos can twitch their ears. around to determine the
direction of specific sounds, much as a cat does.
http://www.bbc.co.uk/learningzone/clips/cam
els-survive-a-sandstorm-in-the-saharadesert/10471.html
http://www.bbc.co.uk/learningzone/clip
s/how-are-camels-adapted-to-live-inthe-desert/6232.html
A Sahara desert animal but
there are some escaped wild
ones in Australia!!
Plenary;
1. Imagine you are at a
bar talking to the
kangaroo! Tell him in
30 seconds without
hesitation why he is so
good at living in the
desert.
Is this the perfect’ desert
animal?
What do we mean by
plant and animal
adaptation?
1. Drought tolerance
2. Drought avoidance
3. Succulence
Plenary;
1. Imagine you are at a
bar talking to the
kangaroo! Tell him in
30 seconds without
hesitation why he is so
good at living in the