BIO 114- Mutualistic Interactions

Exam 3

Mutualism

both individuals benefit from the interaction (+/+)

resulting benefit to themselves is greater than the cost associated with the production of the benefit to the partner

symbiotic relationship

two parties are together all the time

can be mutualistic but the partners are in constant contact

commensalism

one individual benefits and the other sees no cost or benefit (+/0)

one takes advantage of an existing behavior of another without affecting that individual

facultative mutualism

individuals in the relationship can exist without their mutualistic partner

obligate mutualism

the individuals are so dependent on the relationship that they cannot survive without it

survival

can either be literally to live or to have the ability to reproduce and pass down genes

ammensalism

one individual suffers a cost and the other experiences neither a cost nor benefit (-/0)