Hormones control many cell activities, so they are very important for homeostasis.
Hormones travel in the bloodstream to cells that are called target cells a.
The bloodstream allows molecules to travel to control many cell activities .
what allows molecules to travel to control many cell activities

1) skin
2) heat energy
3) animal transport
4) bloodstream
5) Chemical energy
6) nasal passage
7) movement
8) fat tissue