Injured tissue releases signal chemicals that activate platelets in the blood. An active platelets releases chemicals to activate more platelets, causing a rapid cascade and the information of a blood clot. what type of feedback loop is this example of?

What is the similarities and differences between bacteria and eukaryote?

What statement about energy is true

Adaptive radiations can be a direct consequence of four of the following five factors. selectthe exception. a) vacant ecological niches b) genetic drift c) colonization of an isolated region that contains suitable habitat and few competitor species d) evolutionary innovation e) an adaptive radiation in a group of organisms (such as plants) that another group uses as food