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Accessory Digestive glands - 88tuition
The accessory digestive glands are a group of glands that are located throughout the digestive system.
Chemical and Physical changes - 88tuition
Any transformation in nature is of two types: physical and chemical. Both physical and chemical transformations may be defined by the effects they have on the shape and size of things.
Law of Energy transfer in an Ecosystem - 88tuition
Energy is transferred across species in food webs from producers to consumers. Organisms need the energy to accomplish essential activities.