Macrophages are an important part of the immune system. A macrophage released signaling molecules that bound to receptors on the macrophage’s surface. This interaction activated the microphage further and caused it to produce proteins that regulate immune responses. What type of cell communication was involved in the scenario? Explain your answer

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra 2 math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this and anther one for days and if i get the 2 questions right i pass the class.

What is a system where wealth and property are privately held and profit is the goal rather than providing for collective needs? a. capitalism b. socialism c. communism d. feudalism

What impact does landscape management have on the world