a slide of pizza has 500kcal, if we could burn pizza and use all the heat to warm a 50-l container of cold water, what could be the approximate increase in the temperature of the water

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

during expiration the diaphragm relaxes, which causes the diaphragm to move downwards. the contraction of diaphragm increases the space for expansion of lungs. hence, the diaphragm relaxes and positioned downward during expiration.