adaptation of animals to life in extreme water conditions
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Adaptation of animals to life in extreme water conditions. How to live on the desert and in water ?. Anna Rysiak Biology teacher 23 Secondary School in Lublin. Aims of the session:. Learn about the conditions of water and desert - PowerPoint PPT PresentationTRANSCRIPT
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Adaptation of animals to life in extreme water
conditions
How to live on the desert and in water ?
Anna Rysiak
Biology teacher 23 Secondary School in Lublin
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Aims of the session: Learn about the conditions of water and desert Answer the question: why is it difficult to live in
water and on the desert Learn about the adaptations water and desert
animals have See what type of question they can ask about
adaptations for living in water and in desert (and be able to answer it)
Recognize features of animals living in different conditions
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What is adaptation ?
An adaptation is a characteristic that an organism
has evolved that helps it to survive in its environment.
There are two main types of adaptations.
They are: 1. Structural adaptations are body parts that an organism has that
help it to survive2. Behavioral adaptations are the ways that an organism behaves
that help it to survive.
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The special properties of water and conditions in water environment
It is suitable enviroment for many organisms (constant temperature - homeostasis)
It is a good solvent Is much more dense than air The lack of light The concentration of oxygen
is changed Water pressure Salt Regulation
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Desert conditionsHigh temperature and day and
night temperature fluctuationWater deficiencyFood deficiency
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Fennec fox (Vulpes zerda)
Paramecium
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Sea turtle
Leopard geco (Eublepharis macularius)
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Dromedary camel (Camelus dromedarius)
Atlantic midshipman (Porichthys plectrodon)
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Meerkat (Suricata suricatta)
Foureye butterflyfish (Chaetodon capistratus)
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Gila monster (Heloderma suspectum)
Silvertip shark (Carcharhinus albimarginalis)
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Sidewinder (Crotalus ceraster )
Dolphin bottlenose (Torsiops truncatus)
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Desert tortoise (Gopherus agassizii)
Humpback whale (Megaptera novaeangliae)
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Grey Seal (Halichoerus grypus)
Sonoran desert toad (Bufo alvarius)
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Bilby (Macrotis lagotis)
Tuna fish (Thunus thynnus)
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Kangaroo rat (Dippodomys deserti)
Sponges (Porifera)
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Killer whale (Orcinus orca)Thory devil (Moloch horridus)
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Addax antelope
(Addax nasomaculatus)
Angler fish (Lophius picatorius)
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Convergent evolutionThis is situation, with a number of organisms from
different classification groups showing similar adaptations
ON THE DESERT: are medium to small in sizequite a few of the animals get water through their
foodsome animals store fat instead of water to surviveconserving energy and water is very important to
every animal on the desert most animals in the desert are light in color the skin of some animals is totally impervious
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Convergent evolutionIN WATER:
streamlined body shape fins can take their oxygen from the water can stay underwater without breathing for an hour or more cold-blooded (ectothermic) animals marine mammals because they are warm-blooded
(endothermic) have an insulating layer of blubber (made up of fat and connective tissue) under their skin
in the depths of the ocean abyss, some fish are bioluminescent, using light-giving bacteria or their own light-producing
eliminate the salt through their gills or “salt glands”; mammals don’t drink salt water, instead getting the water they need from the organisms they eat.
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References:Pickering W. R. 2000. Complete biology. Oxford
University Press.Umiński T. 1986. Zwierzęta i oceany. WSiP,
WarszawaDoes A., Johnsson N. A., Thiel T. 2004.
Rediscowering biology. Moleculal to global perspectives.
www. wikipedia. com.