PLEASE HELP How do active transport and facilitated diffusion differ? a one uses help from proteins and the other does not b one requires energy and the other does not c active transport moves molecules against a concentration gradient and facilitated diffusion does not d both b & c

b and c

Explanation:

because active transport requires energy from respiration yet diffusion doesn't. Additionally, active transport molecules move against a conc gradient but diffusion molecules move down a conc gradient.

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.

explanation:

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