Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
simple inorganic chemical substances (mineral salts) that are needed in relatively large amounts for normal growth and development of a living organism.
neurons that transmit nerve impulses away from the central nervous system to the effectors.
a disease caused by the human immunodeficiency virus (HIV).
a group or category in the biological classification system (the plural of taxon is taxa).
a rubbery, protein-carbohydrate complex that forms the matrix of cartilage.