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Aliving organism that makes its own complex organic matter from simple inorganic substances.
a living organism that obtains its nutrients by consuming complex organic matter it cannot make its own food. All animals and fungi are heterotrophs. Most bacteria are heterotrophs.
is the removal of the waste products of metabolism from the living organism.
the ability of an organism to detect changes in its external and internal environment and make adaptive alterations to its activities that enhance its chances of survival and reproduction.
is the formation of a new living organism of the same species.
the purposeful alteration of posture or position in response to a change in the internal or external environment of the organism.
involves increase in cell size and increase in cell number.
is an organic substance produced by a living organism and has an important role in a metabolism.
the study of the home of living organisms, their interactions with each other and their abiotic environments.
the place where an organism lives and to which it is adapted.
a group of individuals of the same species living and interbreeding in the same habitat
a self sustaining community of a organism and their abiotic environment. There is a great diversity of ecosystems: grassland, freshwater pond, hedgerow, forest, sea shore, woodland.
the role a species plays in the dynamic integrated ecosystem. A species’ niche is a full description is a full description of how it is suited to the habitat, fits into the community and how it affects and is affected by abiotic and biotic factors. A species’ niche include where it lives, when it is active, what it feeds on, what feeds on it and its tolerance range for each abiotic factor.
the part of the Earth including the atmosphere inhabited by living organisms.
features of the non-living environment that influence the community.
organisms that can make their own food from inorganic sources.
organisms that cannot make their own food.
a list of species each serving as a food source for the next species in the list; a specific pathway along which food (chemical energy) flows in the community.
level is the position of a species in a food chain is its trophic level.
Pyramid of numbers:
a modified bar chart showing the number of individuals at each trophic level of a specific food chain.
A chart that shows the complex feeding relationships in a community.
influences of organisms on each other.
the struggle between individuals of the same or different species for essential limited resources.
the killing of one animal by another for food. A predator is an animal that hunts and kills another animal the prey for food.
individuals of two or more species living in close association with each other where there is a benefit and loss for at least one of the specie
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