Are these happy face spiders all the same species?

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Presentation transcript:

Are these happy face spiders all the same species? Adaptation Are these happy face spiders all the same species?

Yes, they are all members of the same species Yes, they are all members of the same species. They freely mate and have similar reproductive behaviours. They live in Hawaii.

Meet the Liger! Meet Hobbs the ‘Liger’ - cross between a male lion and a female tiger - sterile male - challenges geographic isolation because interbreeding between species occurs, BUT ligers are typically sterile therefore this is ‘unsuccessful breeding’

Adaptations Adaptations are inherited traits that improve the chances of survival and reproduction of organisms 3 types Physical Adaptations Behavioural Adaptations Physiological Adaptations

Physical Adaptations Structural/anatomical adaptations In birds Wings Feathers Opposable thumb in Panda Bears Polar bears - Black skin and hollow hairs

Behavioral Adaptations Courtship- mating ritual Migration- geese fly south for winter Nocturnalism- active during the night Metabolism- how fast an individual uses food for energy Hibernation – sleeping through the winter Estivation - slowing of metabolism in some animals during a hot or dry period Lyre bird: http://www.youtube.com/watch?v=VjE0Kdfos4Y&safety_mode=true&persist_safety_mode=1&safe=active Bird of paradise: http://www.youtube.com/watch?v=HyvxlUpEjgI&safety_mode=true&safe=active&persist_safety_mode=1

Physiological Adaptations Pheromones chemicals secreted by organisms to attract or repel other organisms Examples: Sexual attractants or alarms Poison glands (frogs) Enzymes - control bodily functions Venom by snakes Toxins produced by plants & animals (skunk, sea anemones)