Dinosaurs, saber-toothed cate, dodo bird, Tasmanian wolf
100
What type of succession occurs faster than the other?
Secondary
100
The process of one ecosystem gradually chaning into a different type of ecosystem is called _______.
Succession
200
What are some human actions that cause ecosystem changes?
Forests cut down, pesticides, pollution, introduce new species, OR remove species
200
These species are in danger of becoming endangered.
Threatened
200
Where can secondary succession take place? In other words, give me an example.
Forest after a fire or logging OR abandoned farm field
200
The establishment of a new community where a community had already existed is called ________.
Secondary Succession
300
Give me an example of a change caused by an organism.
Beavers building dams, elephants trample plants, algae use up oxygem, OR coral reefs create new habitats
300
Organisms who respond to changes in ecosystems..
Adapt to change OR migrate to another place
300
What is an example of a type of organism you would find in the Climax Community?
Maple or beech trees
300
One of the first species to live in an area that used to be lifeless is a(n) ________.
Pioneer Species
400
What are the two ways that ecosystems can change?
Natural events
400
What are 2 causes for species to become endangered?
Global warming, pollution, overhunting, over collecting, disease, competition from another species, habitat loss
400
What is an example of an organism you would find in the Pioneer Community?
Bare rock or lichen and mosses
400
Succession that occurs where there is no soil and where few, if any, living things exist is called?
Primary Succession
500
Can a natural ecosystem change cause more damage than a change caused by people?
Yes - for example: a volcano can cause more damage to a local ecosystem than is caused by building a road
500
How are endangered and threatened species related?
Both may become extinct. Endangered species could easily become extinct. Threatened species are species that may become endangered because their population numbers are low.
500
What are the 3 steps of Primary Succession?
1. Pioneer Community
2. Intermediate Community
3. Climax Community
500
Establishment of the first living community to develop in an area that used to be lifeless is called?