Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
invisible, short-wave radiation emitted by the sun, which can cause cancer in humans.
in plants: the structure within a seed that will develop into the new plant.
the forming new plants asexually (without the production of seeds or spores).
a muscular structure on the floor of the mouth of most vertebrates, which manipulates food for ...
mass extinction event of 250 million years ago, in which about 90% of all species on Earth died...