The force that can put unhealthy tension on the heart as it is pumping is called blood pressure. true or false

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

The chemical form of energy that is useable by the cell to do work