Across
- 4. Adenosine triphosphate
- 6. relating to biology or living organisms.
- 7. the action of reproduction
- 8. thing that gives us light
- 9. all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.
- 15. cutting down the forests
- 18. a green pigment, present in all green plants and in cyanobacteria, which is responsible for the absorption of light to provide energy for photosynthesis.
- 19. each of a number of small areas of habitat, typically of one square metre, selected at random to act as samples for assessing the local distribution of plants or animals.
- 22. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial
- 23. the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
- 24. tiny opening in the epidermis of a plant
- 27. has no effect
- 29. non living
- 30. all the inhabitants of a particular place.
- 31. take into account (an extraneous factor that might affect the results of an experiment).
- 33. when a plant absorbs water in its roots
- 35. air
- 37. the state or process of rotting; decay.
- 39. the regions of the surface and atmosphere of the earth or another planet occupied by living organisms.
- 42. the action of breathing.
- 43. everything is made up of it
- 46. the hunter
- 47. the natural home or environment of an animal, plant, or other organism.
- 48. add an animal into a new area
- 49. the spreading of something more widely
Down
- 1. living
- 2. an association between two organisms in which one benefits and the other derives neither benefit nor harm
- 3. no water
- 5. the hunters meal
- 7. symbiosis which is beneficial to both organisms involved.
- 10. the act of leaving one's own country to settle permanently in another; moving abroad.
- 11. to capture a second time
- 12. a simple sugar which is an important energy source in living organisms and is a component of many carbohydrates.
- 13. take into one's possession or control by force.
- 14. the action or process of precipitating a substance from a solution.
- 16. water disappearing
- 17. a glasshouse that is used for growing plants
- 20. the action of working with someone to produce something
- 21. interaction between two different organisms living in close physical association, typically to the advantage of both
- 25. an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner part being folded inwards to form layers (cristae).
- 26. water filling in everywhere
- 28. the rigid outer part of the earth, consisting of the crust and upper mantle.
- 32. the practice of living as a parasite on or with another animal or organism
- 34. the action of coming to live permanently in a foreign country.
- 36. the activity or condition of striving to gain or win something by defeating or establishing superiority over others
- 38. a biological community of interacting organisms and their physical environment
- 40. a group of people living in the same place or having a particular characteristic in common
- 41. litter and carbon emissions
- 44. a burning element
- 45. setting alight