Imagine that scientists have developed an experimental medication that completely blocks the sensation of pain. this medication most likely targets:

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

What processes take place before the mature mrna exits the nucleus?

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary