Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
a hard granule of crystallised minerals which forms in the kidney.
unicellular organisms that contain a true nucleus and membrane bound organelles. All protists...
an artificial device that helps to stimulate and regulate the heart muscle.
the effect of the relative lengths of daylight and darkness on the physiology and behaviour of...
is the supply of materials, in the form of food, required by organisms and cells to stay alive...
the outer most layer of tightly packed modified parenchyma cells in plants.