Earth Science: Types of Cohabitation – Parasitism Parasites are organisms that withdraw nutrients from other species (hosts). This may damage the host but it will not, at least during the early stage, kill it. Parasites are mostly specialized for a specific host (host specificity). Parasites are intricate organisms who have complex relationships to their hosts. … Read more
Earth Science: Biology – Ecology – Types of Cohabitation A particular form of cohabitation between different species, advantageous for both partners, is symbiosis (also referred to as mutualism). This is in contrast to other parasitic relationships where organisms feed partially or completely at the expense of others, while they live temporarily or permanently on or … Read more
Earth Science: Ecology – Populations – Competition The intra- and interspecific competition—that is, the contest among organ- isms for limited resources, such as food and living space—are significant biotic environmental factors that often have a large influence on biomass. With intraspecific competition, the individuals of a species are in direct competition for biotic and abiotic … Read more
