Biology

1. the preying of one animal on others such as a lion and a gazele
2. symbiosis that is beneficial to both organisms involved such as clownfish and anemone
5. all nationals present in, or temporarily absent from a country, and aliens permanently settled in a country
7. a type of biological interaction where one species causes harm to another organism without any cost or benefits to itself.
8. the number of people, other living organisms, or crops that a region can support without environmental degradation

1. a type of relationship between two organisms, in which one benefits at the expense of the other such as ticks and mosquitos
3. a relationship between 2 organisms that has an effect on 1 or both
4. an interaction between organisms or species in which both require a resource that is in limited supply such as hippos and gators
6. an association between two organisms in which one benefits and the other derives neither benefit nor harm such as the remora and sharks