In angiosperms, what is the name of the outer epidermal layer that protects the plant body?
a. vascular tissue / b. dermal tissue/ c. ground tissue

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.

light dependent reactions:

light independent reactions:

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