Testing for Distribution & Abundance The distribution of a species describes how it is spread throughout the ecosystem The abundance of a species is the number of individuals of that species Th...
Random Sampling Measuring the different levels of biodiversity within an ecosystem can be a tasking job Finding out which species live in an ecosystem and the size of the populations requires the i...
Biodiversity Biodiversity can be thought of as a study of all the variation that exists within and between all forms of life Biodiversity looks at the range and variety of genes, species and habita...
Ecosystem & Niches Ecosystems Species do not exist by themselves in their own isolated environment, they interact with other species forming communities These communities interact with each oth...
Viruses Viruses are microorganisms that can only be seen using an electron microscope They have no cellular structure (and so are acellular and no metabolism Viruses hijack the DNA replication mach...
Kingdoms The domain Eukarya can be divided into 4 kingdoms: Protoctista Fungi Plantae Animalia Organisms from each of the four kingdoms have distinct characteristics and features, but share similar...
Eukarya The hierarchical classification system of organisms in biology is used to organise and group similar organisms together so that they can be more easily understood There are several taxonomi...
The Three Domains: Archaea, Bacteria & Eukarya Taxonomy is the practice of biological classification It involves placing organisms into a series of categories or taxa By grouping organisms into...
Definitions of Species Scientists have been classifying organisms into species for hundreds of years, in order to investigate the diversity of life that exists today and in the past There is diffic...
