Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
refers to any variation in the nucleotides, genes, chromosomes, or whole genomes of organisms.
a thick layer inside the primary cell wall. It consists mainly of cellulose, hemicellulose and...
plant-like organisms that live and grow in water; they make their own organic food by the...
an area of land which is usually covered with shallow water, and which supports plants adapted...