Ecological Definitions

What is the term for the following definition? The particular place where a community of organisms is found. Woodlands, coral reefs and cultivated fields are all examples.

What is the term for the following definition? A group of individuals belonging to one species that are generally found in one place at a particular time and are able to breed with one another. All the oak trees in a wood or the frogs in a pond are examples.

• Population

• Community

• Ecosystem

• Habitat

What is the term for the following definition? All the living organisms found in a particular place at a particular time. The ------------ found on a rocky seashore, for example, consists of all the seaweeds, together with all the different species of animals – molluscs, fish, worms, crabs – as well as the bacteria and single-celled organisms.

What is the term for the following definition? All the organisms living in a particular area (i.e. the community) as well as the non-living features of their environment.

• Ecosystem

• Population

• Habitat

• Biome

What is the term for the following definition? An ecological factor that is part of the non-living or physical environment of an organism.

• Abiotic

• Biotic

• Symbiotic

• Parasitic

What is the term for the following definition? An ecological factor that is part of the living environment of an organism.

• Biotic

• Abiotic

• Symbiotic

• Climatic

What is the term for the following definition? An organism that builds up the organic molecules it requires from small inorganic molecules such as carbon dioxide and water. In order to do this a source of energy is necessary (e.g. light) They are the producers in food chains.

• Autotroph

• Heterotroph

• Saprobionts

• Parasite

What is the term for the following definition? An organism that gains its nutrients by feeding on other organisms. The complex organic molecules in its food are broken down by enzymes into simpler soluble substances before being built up again to form the complex organic substances that the organism requires.

• Heterotroph

• Autotroph

• Saprotroph

• Producer

Which term is defined as: An organism that can make its own organic compounds from inorganic compounds either by photosynthesis or by using the energy released from chemical reactions. Green plants, algae and some bacteria examples of these and they are found at the start of all food chains.

• Producer

• Consumer

• Decomposer

• Parasite

Which term is defined as: An organism that consumes plant material for its food, also called a herbivore.

• Primary Consumer

• Secondary Consumer

• Decomposer

• Carnivore