The various types of symbosis include: 1  parasitism-one species (parasite) benefits more than the other species (host). 2  commensalism-one species benefits while a second species is neither helped nor injured. 3  mutualism-both species benefit from the interaction.he various types of symbosis include: 1  parasitism-one species (parasite) benefits more than the other species (host). 2  commensalism-one species benefits while a second species is neither helped nor injured. 3  mutualism-both species benefit from the interaction.
Many different types of energy can be converted into heat energy. Light, electrical, mechanical, chemical, nuclear, sound and thermal energy itself can each cause a substance to heat up by increasing the speed of its molecules.
In a system, energy can do work and, in this process, energy can be changed to other forms such as heat, sound, light etc. When the energy of a system changes as a result of a temperature difference between the system and the surrounding we say that energy has been transferred as heat.