Arelationship in which one organisms benefits while the other is not harmed but does not benefit either is called

The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

What are some characteristics of a free enterprise economy?