Science: Chapters 3 and 4 Flashcards
1
Q
Succession
A
Gradual change from one community of organisms to another.
2
Q
Parasite
A
An organism that lives on or in another organism, helping itself but hurting the other organism.
3
Q
Extinct
A
No longer living, as an entire species, or active, as a volcano.
4
Q
Hazardous Waste
A
Substances that are very harmful to humans and other organisms.
5
Q
Endangered
A
A species whose population has been reduced to such small numbers that it is in danger of being extinct.
6
Q
Competition
A
When two or more species in an ecosystem must use the same limited resources.
7
Q
Host
A
An organism that is harmed by a parasite.
