Ecology

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Across
  1. 3. - each level in a food chain. Matter is always 'lost' as heat energy at each trophic level.
  2. 4. - a large, easily differentiated community unit arising as a result of complex interactions of climate, other physical factors and biotic factors
  3. 5. - related to colour (e.g. camouflage, warning colouration of blue-ringed octopus, mimicry of butterfly wings with 'eye spot')
  4. 7. - living factors e.g. amount of food, predators, parasites, competitors
  5. 10. - the process used by plants containing chlorophyll to utilise sunlight, carbon dioxide and water to form sugar (as glucose) and oxygen
  6. 14. - a consumer that obtains its nutrients from detritus
  7. 15. - related to behaviour
  8. 16. - a relationship in which two organisms of different species 'live together' for a period of time
  9. 17. - an organism such as bacteria and fungi that breaks down dead organisms and their wastes
  10. 19. - a plant eater
  11. 21. - a natural unit of living and non-living parts that interact to produce a stable system in which the exchange of materials between living and non-living parts cycles
  12. 23. - A cycle shows the reusing of certain elements and compounds (e.g. water, carbon, oxygen, nitrogen, phosphorus) in different forms in ecosystems.
Down
  1. 1. - related to courtship, mating or rearing of young
  2. 2. – series of organisms showing feeding relationships
  3. 6. - an organism which eats both plant and animal matter
  4. 7. - the amount of energy used by an organism's body just to keep alive, when no food is being digested and no muscular work is being done
  5. 8. - an consumer that eats dead animals (e.g. crab)
  6. 9. - an organism that obtains nutrients from the blood or flesh of an animal
  7. 10. - related to the organism's metabolism
  8. 11. - the study of the interrelationships of living organisms and their environment
  9. 12. - related to the structure of the organism (e.g. The streamlined shape of fish enables it to swim more quickly through water.)
  10. 13. - the total dry weight of the organisms in a trophic level
  11. 18. - usually a green plant that produces its own food by photosynthesis
  12. 20. - occurs in all living organisms in the forms of oxygen gas, water, carbon dioxide, carbohydrates, proteins and fats.
  13. 22. - occurs in all living organisms in the forms of carbon dioxide, carbohydrates (sugars and starches), proteins and fats.