The process that occurs when an ecosystem takes over an area of bare rock.
What is primary succession?
The process that occurs when an ecosystem takes over on bare soil after an earlier ecosystem is wiped out.
What is secondary succession?
The term given to a species that plays a very important role in an ecosystem. The ecosystem would fall apart quickly if this species disappeared.
What is a keystone species?
The first species that occur in any type of succession are all called ______________
What are pioneer species?
The two reasons biodiversity is important.
What are for economic reasons, medical reasons, scientific reasons, environmental reasons, stability?
An organism that breaks down wastes and dead organisms. Vital to recycling nutrients in an ecosystem.
What is a decomposer?
These are the last species to appear in ecological successions.
What are deciduous trees?
(Also accept: leafed-trees, hardwoods)
Biodiversity is highest in this part of the world.
What is the equator?
The first trees that appear in succession are ___________
What are pine trees?
(Also accept conifers, trees with needles, softwoods)
A species that is introduced into an ecosystem. This group of species is likely to cause environmental changes.
What are invasive species?