Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
organisms that are unable to produce their own organic food and must therefore obtain nutrients by eating other organisms.
anaerobic respiration that occurs in plants and results in the formation of ethanol and carbon...
coiled thread-like structures of DNA and histone, which is a protein, in the cell nucleus. They...
waste water from sinks, washing machines, dishwashers, showers and baths, which can be used for...
structure that contains the two centrioles arranged at right angles to each other in animal...
a relationship between two different organisms, of different species, from which at least one of...