heredity adaptations in traits found in birds
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Heredity Adaptations in traits found in Birds. Drawing Lab Science 7 Mr. Nigh. Darwin’s Finches adaptations. - PowerPoint PPT PresentationTRANSCRIPT
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HeredityAdaptations in traits found in Birds
Drawing Lab
Science 7
Mr. Nigh
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Darwin’s Finches adaptations Darwin's finches are an excellent example of the way in which species' gene pools
adapt for long term survival. Their beaks have evolved over time to be best suited to an important function—Food Acquisition
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Adaptation: a characteristic of a species that allows members of that
species to survive in a particular environment
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Beak Adaptations
Pouch likePouch like — can hold the fish it catches to eat
Pelican
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Avocet
Long thinLong thin – can probe shallow water and mud for the insects it eats.
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Pointed Pointed – can break and probe bark of trees for the insects it eats
Woodpecker
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Warbler Finch
Short, Stout Short, Stout – Can crack the seeds and nuts it eats
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Hummingbird
Slender, long Slender, long – Can probe the flowers for nectar
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Feet
Webbed Webbed – Aids in walking on slick rocks and swimming
Duck
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Crane Heron
Long toes Long toes – Aids in walking in mud– Aids in walking in mud
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Bald Eagle
Clawed Clawed – Can grasp food when hunting prey
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Chicken
Grasping Grasping – Aid in sitting on ledges, roosting, and good protection
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Legs
Ostrich
Long, Powerful Long, Powerful – Aids running ability
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Great Blue Heron
Long, SlenderLong, Slender – Aids wading ability
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Bald Eagle
Powerful Muscles Powerful Muscles – Aids lifting, carrying prey
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Flexor tendons Flexor tendons – Aids in perching, grasping
Chickens
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Wings
Peregrine Falcon
Large Wingspan – Aids soaring ability while hunting
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Small, fast wings Small, fast wings -- Ability to hover near food source for maneuverability and quick getaway
Hummingbird
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Objectives in Lab
• You will recognize that there are advantages for birds in looking the way that they do.
• You will recognize some of the ways in which birds are physically adapted to their environments
• Follow instructions given on lab sheet to construct a new species of bird perfectly adapted with characteristics from its evolutionary gene pool to not just survive, but thrive!!