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Ecosystems
3rd Grade Vocabulary
| Question | Answer |
|---|---|
| animals that begin life breathing with gills in water and later develop lungs | amphibians |
| animals that have a backbone | vertebrates |
| organism whose body temperature changes with the temperature of the air around it | cold-blooded |
| characteristics an organism is born with | inherited traits |
| what an organism must have in order to stay alive | basic needs |
| features of a living thing | characteristics |
| a change that makes an organism better able to survive | adaptation |
| what surround an organism | environment |
| the natural environment of an organism | habitat |
| a community of different organisms and their environment | ecosystem |
| land that has wet, spongy soil such as a swamp | wetlands |
| land covered with trees and shrubs | woodlands |
| an animal that hunts and eats other animals | predator |
| an animal that is hunted by a predator | prey |
| transfer for energy from one organism to another | food chain |
| an organism that can make its own food | producer |
| an organism that eats only plants | herbivore |
| an organism that eats only animals | carnivore |
| an organism that eats both plants and animals | onmivore |
| any living thing | organism |
| interrelated food chains in an ecosystem | food web |
| cold-blooded vertebrates that are covered with scales | reptiles |
| thin flat plates that cover reptiles | scales |
| an area with very little rainfall | desert |
| treeless, flat land covered with grasses | prairie |
| organs in the respiratory system that transfer oxygen to the blood | lungs |
| respiratory organs that remove dissolved oxygen from water | gills |
| dies | perish |
| lives and grows | thrive |