Oaks are dominant trees in some temperate deciduous forests. the seeds of oak trees are enclosed within fruits called acorns. squirrels and other forest animals often bury acorns to save them for the winter, but do not end up eating all of them. how do the activities of squirrels affect oak trees?
a. they make it more difficult for the tree to reproduce.
b. they help the trees reproduce more successfully.
c. by removing acorns, their behavior causes harm to the trees.
d. they cause the trees to produce acorns during the winter.