Conservation of Biodiversity Zoos and seed banks help to conserve endangered species. The extinction of a specie or the loss of genetic diversity can cause a reduction in global biodiversity. Some species such as the Dodo have already became extinct, and many and...
Measuring biodiversity Specie richness is the simplest way to measure biodiversity, this involves counting all the species present in a given habitat. Specie evenness is when you use specie richness but you take into account the population size of each of the species....
Starch, cellulose and fibres Starch is the main energy storage material in plants, cells get energy from glucose. Plants store excess glucose a starch. Starch is a mixture of two polysaccharides, these are Amylose which is a long unbranching polysaccharide. It is a...
Drug testing and drugs from plants Before drugs become available to the general public they need to be tested to make sure they work, and don’t have any horrible side effects. We know this through the past, experiments such as William withering digitalis soup, he...
Biodiversity and Endemism Biodiversity is the variety of all living organisms in an area. It includes species diversity (the number of different species, and abundance of each species in a area) and genetic diversity (the variety of alleles within a specie)....
Plant cell structure and plant stems Different part of the plant stems have different functions there are two main things, these are xylem vessels and the sclerenchyma fibres. Water is transported through xylem vessels through diffusion gradients. When water...
Adaptation and evolution A niche is a role of specie within a habitat. A niche a specie occupies within a habitat includes its interactions with other living organisms, and its interactions with the non-living environment. Every specie has a unique niche, and a niche...