1. what is an organelle? 2. give me an example of an organelle.

3. Which organelle is the "command center" of
the center?

1. a subcellular structure that has a job to do within the cell

2. mitochondria

3. the nucleus

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.