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Q: Which vertebrates are endothermic? birds reptiles amphibians mammals bony fish
A: birds
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User: Which vertebrates are endothermic? birds reptiles amphibians mammals bony fish

Weegy: birds
earnonline724|Points 169|

User: Which characteristics are common to both birds and reptiles? scales ectothermic amniotic eggs beaks feathers hollow bones

User: With the exception of echinoderms, invertebrates are _____; chordates, echinoderms, and vertebrates are _____. soft-bodied; hard-bodied acoelomates; coelomates protostomes; deuterostomes radially symmetrical; bilaterally symmetrical

Weegy: Invertebrates have been the most abundant and successful multicellular organisms on the planet since at least the Cambrian Period over 500 mya. We are still in the age of the invertebrates and I don't expect that will change any time soon.
craig1990|Points 205|

User: Amphibians live in water and on land. True or False

User: Vertebrates are actually a subphylum of the Chordata phylum. True or False

Weegy: This is true
debnjerry|Points 33133|

User: Kangaroos that nurse their young in a pouch are what type of mammal? monotreme marsupial placental mammal

Weegy: (b)marsupial
jomsday|Points 415|

User: During embryonic development, if the anus develops before the mouth, the organism is a _____. protostome deuterostome invertebrate vertebrate

Weegy: During embryonic development, if the anus develops before the mouth, the organism is a what? B.deuterostome
pearly|Points 230|

User: Animals with a special rod or notochord are called _____. vertebrates chordates invertebrates

Weegy: vertebrates
IfNotSo|Points 7291|

User: Sharks have skeletons made of _____. bone cartilage spongy tissue scales

Weegy: Answer is B) Sharks are a type of fish that have no bones, only cartilage. Some parts of their skeleton, like their vertebrae, are calcified. Cartilage, a strong fibrous substance, is softer than bone; our nose and ears are made of cartilage. [ Sharks belong to the group of fishes called Elasmobranchs, which also includes the rays, skates, and ratfish. The Elasmobranchs are all fish that have no bones, only cartilage. ]
Shaunee|Points 90|

User: Birds have a _____-chambered heart. two three four

Weegy: four chambered heart
BRAINSTORM|Points 3057|

User: The Chordata phylum consists of _____. tunicates lampreys stingrays lancelets trout

Weegy: Chordata phylum consists of tunicates, lancelets
yhaine|Points 567|

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Asked 6/28/2012 11:33:53 AM
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Amphibians live in water and on land. True or False
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Expert Answered
Updated 9/17/2015 5:56:16 AM
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Amphibians live in water and on land. TRUE.
Added 9/17/2015 5:56:16 AM
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