Vocabulary
Fossils
Ecosystem Biotic Factors
Ecosystem Changes
Vocabulary 2
100
Living
What is biotic?
100
The remains of a plant or animal that lived very long ago.
What is a fossil?
100
This is one way that animals can benefit an ecosystem.
What is animals and insects help pollinate plants by spreading pollen from plant to plant.
100
An overpopulation of wolves may cause this.
What is wiping out the population of rabbits in the area.
100
Having died out and no longer in existence.
What is extinct?
200
All the living and nonliving things in an environment.
What is an ecosystem?
200
Scientists can answer these questions by studying fossils.
Where did the animal live? What did it eat? How did it move?
200
Rapid ecosystem changes can cause one of these two things to happen to living things in an ecosystem.
What is death or migrating away?
200
This could happen to plants if the all rabbits in an ecosystem were wiped out by an overpopulation of wolves.
What is the out of control growth of grasses and the crowding out of other plants?
200
All the members of one animal species living in one area.
What is a population?
300
Any living thing.
What is an organism?
300
Fossils of giant sea turtles have helped discover this fact about the land in Kansas and the Dakotas long ago.
What is that the land was once under water?
300
These are two ways that plants benefit an ecosystem.
What is providing food for some animals and providing oxygen for animals.
300
Three slow abiotic changes to an ecosystem.
What are glaciers, climate change and formation of new rivers and lakes?
300
The area or place where an organism lives in an ecosystem.
What is a habitat?
400
Anything that meets a need.
What is a resource?
400
The age of different fossils found deep in layers of rock can be compared by looking at this.
What is the depth? Older fossils are buried deeper.
400
This is one way that animals can harm an ecosystem.
What is animals eating up all of one kind of plant causing death to that species of plant?
400
Three rapid changes to an ecosystem.
What are storms (floods, hurricanes, tornadoes), fire, earthquakes, and deforestation?
400
When two or more living things need the same resource to survive.
What is competition?
500
A physical trait acquired by an animal, over many generations, that enables it to survive in its environment.
What is adaptation?
500
A scientist who studies fossils.
What is a paleontologist?
500
These are changes to plants that can be harmful to animals.
What are drought that kills grasses, floods that kill plants and diseases that kill plants.
500
Two changes to ecosystems caused by human beings.
What are deforestation and climate change.
500
The number of different kinds of living things in an ecosystem.
What is diversity?
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