Topic Unit 2

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Across
  1. 2. eats only plants
  2. 4. eat both meat and plants
  3. 5. essential in ecosystem, forms a key component of all biological molecules (proteins ,fats etc)
  4. 8. the tendency of pollutants to concentrate as they move from one trophic level to the next.
  5. 9. A measurement of dry mass (indicates the total energy within a living organisms.
  6. 11. group of organisms in the same species living in the same area at the same time, capable of interbreeding.
  7. 14. collections of ecosystem that share distinctive abiotic factors, species and climatic conditions.
  8. 15. a community of interdependent organisms (biotic) and their interactions with the physical environment (abiotic) they inhabit.
  9. 17. A biome with a tropical grassland a little similar to a desert
  10. 19. one organism benefit at the expense of another (the host), type of symbiotic relationship.
  11. 20. Indicate abiotic factor of a biome is hot(high) or cold(low)
  12. 22. conversion of organic matter to carbon dioxide and water in all organisms, releasing energy for life processes.
  13. 23. Reduces carrying of infected organism.
  14. 24. all populations ling and interacting in a common habitat at a specific time (only biotic))
  15. 25. Organisms that eats other organisms to obtain energy and matter.
  16. 26. Supports the ecosystem through constant input of energy and new biomass.
  17. 27. demand by individuals for limited environmental resources.
  18. 29. process by which converts light energy from the sun into usable chemical energy stored in organic matter. Produce the raw materials for biomass.
Down
  1. 1. eats only meats
  2. 3. build of persistent/ non-biodegradable pollutants within organism/tropic level because it cannot be broken down.
  3. 6. break down tissue of dead organic matter and release nutrients of reabsorption by producers.
  4. 7. A biome with low temperature low rainfall
  5. 10. the set of biotic and abiotic conditions and resources that an organism or population responds to.
  6. 12. A biome with high Temperature low rainfall.
  7. 13. Limits the sampling area when measuring non-motile organisms. A square frame.
  8. 16. another form of symbiotic where both species benefit.
  9. 18. Environment in which species lives, where an organism can find food, shelter, protection mates.
  10. 21. A group of organisms sharing common characteristics that can interbreed and produce offspring that also produce young.
  11. 22. A biome with high temperature high rainfall
  12. 28. building block for amino acids and DNA