Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
an alkaline watery fluid containing digestive enzymes, which is secreted into the mouth by salivary glands.
bacteria that convert nitrogen in the air into compounds such as nitrites, nitrates and ammonia...
in plants: the female reproductive organ of the flower where the ovules are formed.
a clear, colourless solution of hydrogen chloride (HCl) in water. It is a strong and highly...
the factor that changes in an investigation and is not under the control of the investigator....