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Unit 5 lessons 3-5
Plants and Animals
| Question | Answer |
|---|---|
| structure | a part of an organism |
| root | a plant structure that takes in water and nutrients and holds a plant in place |
| stem | a plant structure that holds a plant up and helps leaves reach sunlight |
| leaf | the plant structure where a plant makes food |
| photosynthesis | the process through which plants make food |
| vertebrate | an animal wit a backbone |
| invertebrate | an animal without a backbone |
| exoskeleton | a hard covering, or shell, that protects an invertebrate's body |
| bird | a vertebrate that has a beak, feathers, two wings, two legs, and lays eggs |
| reptile | a vertebrate taht has scaly, waterproof skin, breathes air with lungs, and lays eggs |
| amphibian | a vertebrate that spends part of its life in water and part of its life on land |
| gills | a structure some animals use to take in oxygen from water |
| fish | a vertebrate that lives in water and breathes oxygen using gills |
| mammal | a vertebrate taht has hair or fur, is born alive, and feeds its young milk |