The blood clotting system or coagulation pathway, like the complement system, is a proteolytic cascade. Each enzyme of the pathway is present in the plasma as a zymogen (inactive form), which on activation undergoes proteolytic cleavage to release the active factor from the precursor molecule. The coagulation pathway functions as a series of positive and negative feedback loops which control the activation process.
Spring Yard Zone is the third Zone in the original Sonic the Hedgehog. It is an urban level with many springs and bumpers, resembling a pinball machine. There are many secret areas in this zone. Act 2 has two Robotnik signs (goals) and as such, can be ended through two possible routes.
DIY Potting Bench. It is hard to imagine spring right now (especially for those of you living on the East Coast), but February is a great time to get organized for spring. A DIY potting bench lets you keep all of your gardening supplies, potting soil and pots in one convenient spot. It also can help keep gardening supplies away from kids and pets. Katie Bower from Bower Powerâs take on the DIY potting bench. Katie Bower from Bower Power built a trap door for her soil container.