The blackberry's seeds must be digested by a bird before they can sprout. What type of relationship do the blackberry plants and the birds have? A. commensalism B. mutualism C. neutralism D. parasitism
I couldn't quite decide what "subject" this would be, so I chose Biology.
B. Mutualism Because the bird has food from the blackberries but the blackberry seeds are distributed when the bird disposes of the seeds and other blackberry plants grow in different areas
