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Published byAvice Barton Modified over 9 years ago
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Adaptations = An inherited trait that increases an organism’s ability to survive and reproduce
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Can be: Structural - Behavioral
a physical trait that aids an organism in competing for resources (eg. stronger or faster) or evading predators Behavioral a behavior that increases an organisms ability to survive or find a mate
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STRUCTURAL ADAPTATION EXAMPLES
Plants that use pollinators often use the ‘bullseye’ pattern to attract bees, butterflies, etc. This pattern has evolved many times Example: black- eyed Susan
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CACTUS PLANTS Cactus plants in the desert have leaves specially designed to: Store water Tolerate long periods of dehydration without harm to tissues
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Desert Animals Structural Modifications to dissipate heat
long appendages (legs, ears, etc.), or small "bodies" (e.g., whole body, leaves, etc.) that radiate heat.
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California Kingsnake Adaptations to consume its favorite food – Rattlesnakes! Hinged jaw – consume food larger than its own head Tolerance to rattlesnake venom
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Dendrobates – or poison dart frogs
Some species have skin that is extremely poisonous – even to the touch Bright markings warn predators they are poisonous
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Lady Slippers Orchids Petal has evolved into pouch
Aroma of orchids makes flies act intoxicated Have so much fun – move to second pouch = pollination!
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BEHAVIORAL ADAPTATIONS
EXAMPLES
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Blue-footed Boobies Blue feet used in their elaborate mating ritual
Male struts around female, raising one foot at time, whistling, bringing sticks as ‘gifts’
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Prairie Dogs Example of a social animal
Build huge tunnel ‘town’ to evade heat & escape predators Adaptation to make a range of vocalizations Bark = warning Rasp = impending attack Scream = pain
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