Which statement best describes a gymnosperm?

a. a nonvascular plant with roots, stems, and leaves
b. a low-growing nonvascular plant lacking true roots
c. a vascular plant that uses spores to reproduce
d. a vascular plant that uses pollen to produce seeds that are not enclosed in protective fruits

d) a vascular plant that uses pollen to produce seeds that are not enclosed in protective fruits

hope this helps!

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.