Which features can a scientist use to identify an amphibian? Select 3

• has a backbone

• has no backbone

• has smooth, moist skin

• has scales or plates on skin

• breathes first with gills and then with lungs

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Asia keeps seeing a small animal in her backyard.  She observed the animal has a backbone, four legs and a long tail, and its body is covered with scales.  What is the classification for this animal?

• bird
• mammal
• reptile
• amphibian

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Why do scientists classify animals?

• to organize information

• to show relationships

• to learn more about animals

• all of the above

Which animal is NOT cold-blooded?

• a fish

• a mammal

• a reptile

• an amphibian

How are animals that have backbones classified?

• as vertebrates

• as invertebrates

• as insects

• as jellyfish

Cold-blooded animals body temperature fluctuates, whereas warm-blooded animals body temperature stays constant.

• True

• False

In which animal group are humans classified?

• birds

• amphibians

• mammals

• reptiles

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Cold blooded animals with scaly dry skin are...

• Fish
• Reptiles
• Amphibians
•  Mammals

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Warm blooded animals that feed their babies with milk....

• Mammals
• Birds
• Insects
• amphibians

The following are all correct definitions of how organisms are classified into groups by various characteristics except:

• animals that eat mostly meat are called carnivores
• animals that can control their body temperature are called warm blooded
• animals without backbones are called vertebrates
• animals that eat both over animals and plants are called omnivores