carbon cycle 5.0 / 5 based on 1 ratingTeacher recommended ? BiologyEnergy flow through ecosystemsGCSEOCR Created by: georgiaCreated on: 06-01-13 14:29 59863412107 Across 1. what is the word used when living organisms rely on each other to exist? (15) 7. per 10,000 atmosphere how many parts are carbon dioxide present in? (4) 8. decomposers break down protein in dead plants and animals and urea in excreted animal waste into what? (7) Down 2. nitrogen is used to make what compound in the body needed for growth? (7) 3. What is released during respiration? (6) 4. what % of energy is usually passed onto the next level in the food chain? (3) 5. What gas is given off during respiration i? (6, 7) 6. there are four diffeent types of microorganisms involved in the nitrogen cycle, nitofying bacteria, nitrogen fixing bacteria, denitrifying bacteria and what else? (11) 9. whats the name of the bacteria that breaks down nitrogen compounds in the soil? (12) 10. plants get their nitrogen from the soil but it needs to be turned into what to produce proteins? (8)
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