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Biology

Vertebrates/ Chordata

QuestionAnswer
What are the 4 characteristics of chordates? Dorsal, hollow nerve chord, notochord, pharyngeal pouches, and post anal tail
Define oviparous? Lay eggs outside the mother's body
Define viviparous? Bear live youngs inside the mother's body
Define oviviparous? Bear offsprings who are born alive, after their development in eggs
What nurse an offspring with milk? Mammary gland
What does it mean by maternal instinct? Mother's care of the baby
What kind of eggs do reptiles have? Amniotic
Do amphibians have gills? Only at a young age
What does Chrondo- means? having cartilage
What are the examples of cartilangenous fishes? Sharks and Rays
What does birds lose weight? Their bones are hollow
Are bony fishes oviparous or oviviparous? Oviparous
Which subphylums is the only one to be viviparous? Mammals
Which subphylum can reproduce by internal and external fertilization? Fishes
Which subphylum(s) have 3-chambered heart? Amphibians, and reptiles
Which subphylum(s) have 4-chambered heart? Birds and Mammals
Which subphylum has 2-chambered heart? Fishes
What would an organism use to respire when it is on land? Lungs
What would an organism use to respire when it is underwater? Gills
Which subphylum(s) have scales? Fishes, birds(on legs), and reptiles
Why are wings important for birds? Warmth and flight
What is the name of the subphylum that is called "bony fishes"? Osteichthyes
What is the name of the subphylum that is called "cartilagenous fish"? Chondrichthyes
Created by: U0105006
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