REVIEW CROSSWORD Biology and Geology – 1º ESO

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Across
  1. 4. The reproductive structure of some fungi, where spores are produced.
  2. 8. Describes cells that do not have a nucleus; their DNA is in the cytoplasm.
  3. 9. A group of molluscs, such as snails and slugs, usually with a muscular foot.
  4. 10. The plant life-cycle stage that produces gametes.
  5. 13. Directional growth response of a plant to a stimulus, such as light or gravity.
  6. 15. Microscopic filaments that form the body, or mycelium, of many fungi.
  7. 17. A non-vascular plant, such as moss, that reproduces by spores.
  8. 18. A group of two or more atoms chemically joined together.
  9. 20. Describes animals whose body temperature depends mainly on the environment.
  10. 22. A muscular part of the digestive system that grinds food.
  11. 23. A taxonomic group that includes one or more closely related species.
  12. 25. sap The mixture of water and mineral salts transported by the xylem.
  13. 26. The lowest layer of the atmosphere, where weather phenomena occur.
  14. 29. A unicellular fungus that obtains energy by fermentation and is used in bread making.
  15. 31. A eukaryotic organism, usually simple, that is not an animal, plant or fungus.
  16. 34. matter Matter made by living things or their remains, rich in carbon compounds.
  17. 35. The fluid material inside the cell where organelles are found and many reactions occur.
  18. 37. A natural, inorganic solid with a definite chemical composition and crystal structure.
  19. 39. Specialised stinging cells used by cnidarians to capture prey or defend themselves.
  20. 42. The solid part of the Earth, including rocks, minerals, landforms and the planet’s interior.
  21. 44. Mammals that lay eggs instead of giving birth to live young.
  22. 45. Roundworms with cylindrical, unsegmented bodies.
  23. 47. A gas made of three oxygen atoms that absorbs much ultraviolet radiation.
  24. 48. Water with a very low concentration of dissolved salts.
Down
  1. 1. effect The warming of Earth caused when some gases retain heat in the atmosphere.
  2. 2. The layer of gases that surrounds the Earth, mainly nitrogen and oxygen.
  3. 3. The set of petals of a flower, often used to attract pollinators.
  4. 5. Describes organisms that produce their own organic matter from inorganic substances.
  5. 6. All the water on Earth, including oceans, rivers, lakes, ice and groundwater.
  6. 7. A flowering plant that produces seeds enclosed inside a fruit.
  7. 10. A seed plant whose seeds are not enclosed inside a fruit.
  8. 11. Small openings in leaves that regulate gas exchange and water loss.
  9. 12. An arthropod with chelicerae and no antennae, such as spiders and scorpions.
  10. 14. The tendency of a mineral to break along flat, regular surfaces.
  11. 16. Amphibians without tails as adults, such as frogs and toads.
  12. 19. The way a mineral reflects light from its surface.
  13. 21. Describes a close relationship between organisms of different species.
  14. 24. A group of arthropods with a hard exoskeleton, such as crabs, prawns and woodlice.
  15. 27. A group of simple aquatic animals with pores and no true tissues.
  16. 28. Describes cells that have a nucleus and membrane-bound organelles.
  17. 30. The smallest unit of a chemical element that keeps its properties.
  18. 32. The basic structural and functional unit of all living things.
  19. 33. A vascular plant, such as a fern, that reproduces by spores.
  20. 36. The part of the Earth where living organisms exist.
  21. 38. Describes animals whose young develop inside the mother and are born alive.
  22. 40. Reproductive cells that can grow into a new organism without fertilisation.
  23. 41. A possible scientific explanation that can be tested by observation or experiment.
  24. 43. A major change in body form during development, such as from tadpole to frog.
  25. 46. Plant vascular tissue that transports water and mineral salts from the roots.