work book 33

3. a species that has been introduced to an ecosystem that outcompete native species for resources
6. something indigenous to a particular locality, but can be found naturally in other areas
8. any relationship in which two species live closely together
10. a symbiotic relationship in which one species benefits and the other species is neither helped or harmed
11. the behavior or interactions between different organism
12. the first species to populate an area
13. A symbiotic relationship that involves one organism living with on or inside an another organism and harming it

1. a species that influences that survives of many other species in an ecosystem
2. an interaction in which one organism kills another for food
3. when both organism of a mutually beneficial symbiotic relationship needs the other for survival
4. the struggle between organism to survive as they use the same limited resources
5. the number and variety of different species is an area
7. the disappearance of all members of a species from the Earth
8. the series of predictable changes that occurs in a community
9. a symbiotic relationship where both species benefit