1) Which vertebrates breathe through their lungs and skin? a) fish b) amphibians c) reptiles d) birds e) mammals 2) Monotremes are what type of mammals? a) egg laying mammals b) mammals that give birth to immature young that need further development in pouches c) mammals that give birth to young ones 3) What is an adaptation that help birds fly? a) beaks b) eggs c) hollow bones d) clawed feet 4) Which of these is NOT a subclass of fish? a) jawless b) crustacean  c) cartilaginous d) bony 5) Marsupials are what type of mammals? a) egg laying mammals b) mammals that give birth to immature young that need further development in pouches c) mammals that give birth to young ones 6) Which of these are ectotherms? a) fish, birds, reptiles b) mammals and birds c) fish, amphibians, and mammals d) birds and reptiles e) fish, amphibians, and reptiles 7) What are endotherms? a) warm-blooded animals; they can regulate their body temperature b) cold-blooded animals; they cannot maintain their own body temperature 8) How do fish move? a) gills b) scales c) fins 9) Which animals are biological indicators? a) fish b) amphibians c) reptiles d) birds e) mammals 10) Which class of vertebrates nurse their young? a) fish b) amphibians c) reptiles d) birds e) mammals 11) Which vertebrates have a 2 chambered heart? a) fish b) amphibians c) reptiles d) birds e) mammals 12) Which class of vertebrates perform preening? a) fish b) amphibians c) reptiles d) birds e) mammals 13) Which class of vertebrates undergo metamorphosis (have a "double-life")? a) fish b) amphibians c) reptiles d) birds e) mammals 14) Which classes of vertebrates have a 3 chambered heart? a) fish, amphibians b) amphibians, mammals, c) amphibians, reptiles d) birds, mammals 15) Which classes of vertebrates have a 4 chambered heart? a) fish, amphibians b) amphibians, mammals, c) amphibians, reptiles d) birds, mammals 16) Which class of vertebrates have hair/fur on their body? a) fish b) amphibians c) reptiles d) birds e) mammals 17) Which class of vertebrates have thick, dry, scaly, and waterproof skin? a) fish b) amphibians c) reptiles d) birds e) mammals 18) Which vertebrates lay their eggs in water? a) fish, amphibians b) amphibians, reptiles c) reptiles, birds d) fish, reptiles 19) Which vertebrate has a swim bladder? a) fish b) amphibians c) reptiles d) birds e) mammals

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