AICE Marine Science AS Level Vocabulary Already Rated A

AICE Marine Science AS Level Vocabulary Already Rated A Ecosystems refers to living organisms and the physical and chemical factors which influence them Habitat a place where organisms live Population organisms of the same species, usually defined as living in the same area Community includes all the different species living in a habitat at the same time Species defined as a group of similar organisms that can interbreed and produce fertile offspring Biodiversity the numbers of different species present and the range of habitats and ecosystems Ecological Niche defined as the role of an organism within an ecosystem, taking into account its relationships with other organisms Symbiosis refers to a relationship between two different organisms, where both derive some benefit from the relationship Parasitism a relationship between two organisms where one, the parasite, obtains benefit at the expense of the other, known as the host, which is usually harmed by the relationship Producer provide food for virtually all other organisms in food chains and food webs, able to synthesise organic substances from simple organic compounds, using light energy from the Sun, in the process of photosynthesis; occupy the first trophic level Consumer an organism that obtains its energy requirements by feeding on other organisms Predator an animal that catches, kills and eats another animal; usually secondary consumers in foo