1. Parasitism is the association of two or more organisms of different species where: Select one:…

1. Parasitism is the association of two or more organisms of
different species where:
Select one:
a. Both partners benefit from the association
b. One partner benefits, but the other partner is unaffected
c. No benefit is gained by either partner
d. One partner benefits, and the other partner is harmed
2. Describe how negative pressure generated by shape changes in
the thorax facilitates ventilation in mammals.