Acopper coin is placed so it touches a brass coin. the temperature of the copper coin is 100 degrees celsius. the temperature of the brass coin is 50 degrees celsius. predict how heat will flow in this situation.

The fauces connects which of th following structures to the oropharynx

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

Describe characteristics of a good respitory surface