Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
the domain that contains prokaryotic micro-organisms. Some live in extreme environments, such as hotsprings. Because of some similarities with eukaryotes the Archaea are more likely to be the ancestors of eukaryotes than the Eubacteria.
(also called an extinction event) the sudden dying out of large number of species over a short...
a muscular structure on the floor of the mouth of most vertebrates, which manipulates food for ...
vascular tissue that conducts food substances from the leaves to other parts of the plant. The...
a genus of the Protozoa consisting of shapeless unicellular organisms that move by means...