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 disease-causing organism, for example bacteria.
the process whereby a particular change causes a response which reverses that change.
a thin, flexible layer of the plant cell wall inside the middle lamella. It consists mainly of...
(also called autotrophic organisms) organisms that produce their own organic food, mainly...
double-membraned, pigmented, cytoplasmic organelles found in plant cells. The organelles have...