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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 |