Study the equation for heat transfer. what happens when the value for tfinal is higher than the value for tinitial? is heating or cooling taking place? what if tinitial is higher than tfinal?

Heat transfer means heat energy is transferred from on object or a body to another. This causes change in many factors, and temperature is one of such factors. If the temperature increases, it means heating is taking place and if temperature decreases it means cooling is taking place.

If Tfinal is more than Tinitial, it means the object has gained some amount of heat energy. Therefore, heating is taking place.

If Tfinal is less that Tinitial, it means the object has lost some heat energy and cooling is taking place.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.