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13 Cards in this Set
- Front
- Back
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Tpyes of adaption
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1) whole body is built to fly
2) reptiles, birds, and mammals share the same three essential embryonic layers 3) four different types of feathers found on birds 4) birds constantly preen and molt 5) muscular system 6) skeletal system 7) center of gravity 8) developed nervous system 9) circulatory system 10) well developed lungs 11) well developed kidneys 12) metabolic rate 13) reproduction |
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whole body built to fly
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body shape is spindle
flexible body bipedal four limbs modified for flight one can tell where a bird lives based on their legs aquatic-webbed feet or lobe s preying-large claws forelimbs are modified fro ability to fly external covering of feather |
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four different types of feather
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contour-overall shape of bird
flight-longer, stronger, hollow shafts filoplume-not all birds have, fro birds who spend time in water,mainly in rain forest, tips of feather degenerate quickly that produces a powder that is water reisistant powder down-short fluffy feather it is the base cat, keeps war, sheds regurily |
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molting
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distinct seasons for molting:
spring-summer: tends to be more colorful becuase of courting, mating, and reproducing fall-winter: more camoflauges |
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muscular system
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well developed for flight and nonfligth birds
it is a lever system well ossified skeleton bones are hollow, air sacs in the bone, gives strength and not heavy enough to weigh them down in flight main muscles in the thighs |
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skeletal system
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beak is an extension of
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center of gravity
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is well in the back of the body
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nervous system
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fairly bright
sees in color good distance vision placement of eyes on side - wide view to look out to prey on the front - see prey birds cannot move their eyes, they are locked in the socket, must move head, swivel close to 360 |
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circulatory system
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four chambered heart - more effieceitn in pumping blood
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lungs
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extra sacs at bottom of lungs
bird is breathing in or out, they push oxygenated blood further into the system |
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developed kidneys
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no fresh water, needs to drink salt water
special glands behind nostrils and developed kindeys to sequester all of salt |
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metabolic rate
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high
dont live long always eating |
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reproduction
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ties birds to land
lays amniotic egg:watery womb in package has many different emebranes that have specific tasks eggs can be laid anywhere some birds leave for others to take care of some birds feed them and look after them when they are grown ups some teach their babies to fly |
