- 7. Which of the following would be the best reason for a spike in plant growth? a. Regular watering b. Extra water C. Buried a dead fish in the terrestrial chamber d. Temperature increased 8. What is the best reason as to why dissolved oxygen levels dropped with a dead fish: a. The elodea had less CO_(2) to use to turn into Oxygen b. The plants had less nutrients to create oxygen C. Bacterial decomposition of the fish used up dissolved CO_(2) C. Bacterial decomposition of the fish used up the dissolved oxygen 9. What is the lowest acceptable level of dissolved oxygen for MOST aquatic life? a. 3mg/l b. 5mg/l C. 1mg/l d. 7mg/1 10. What is the purpose of watering our terrestrial chamber with aquatic chamber water? a. To save water in a drought b. To provide terrestrial plants with nitrate and phosphates produced in fish waste C. To provide terrestrial plants and animals calcium and nitrates produced from fish respiration d. To provide terrestrial detritivores needed nitrates 11. Which of these are ways that dissolved oxygen is added to the aquatic chamber? a. Dissolved from the air and provided through cellular respiration of the fish b. Photosynthesis of elodea and photosynthesis of nitrogen -fixing bacteria C. Dissolved from the air and photosynthesis of elodea d. Cellular respiration of the fish and also of the elodea 12. The leaves of many of the plants in our ecocolumns turned yellow towards the end of the lab. Which of the following is NOT a possible reason for this a. Nitrogen was used at a faster rate than it was replenished through nitrogen fixation b. Nitrogen was used at a faster rate than it was replenished by decomposition C. Nitrogen was used at a faster rate than it was replenished by the cilantro d. Too much competition from plants for nutrients and this caused nutrient depletion
- Qu'est-ce qui distingue un tendon d'un ligament?
- Puberty is the time when menstruation stops: True False
- 5. Describe Mendel's 1^st law of genetics?' (Law of segregation)
- What is true about aging? a. It is a normal process b. It means loss of health c. It decreases quality of life d. It occurs at the same rate in all people
