vitual urchin lab
1. What does the graph of atmospheric Carbon Dioxide tell us?
- The graph shows us how the CO2 in the atmosphere are increasing every year.
2. Where do some common items fall on the pH scale?
- The common items are around 2-4 pH.
- The graph shows us how the CO2 in the atmosphere are increasing every year.
2. Where do some common items fall on the pH scale?
- The common items are around 2-4 pH.
3. How might it change?
- It changes by the amount of the Carbon Dioxide. A change from 8.2 to 8.1 on the pH scale is a 30%.
4. Explains what happens to the Carbon in ocean water?
- Excess CO2 leads to lower pH, higher bicarbonate levels, and lower carbonate levels.
5. -Optimistic: As the years want from 1865 to 2090 the corals shrink as the amount of carbon dioxide increased with the pH 7.92.
-Middle Ground: The corals shrink even more with higher carbon dioxide level and the pH for year 2090 is 7.83.
-Pessimistic: The corals size decreased with higher carbon dioxide level, withe pH level for 2090 is 7.73.
6. Sort each of the organisms into Calcifiers or Non-Calcifiers:
- It changes by the amount of the Carbon Dioxide. A change from 8.2 to 8.1 on the pH scale is a 30%.
4. Explains what happens to the Carbon in ocean water?
- Excess CO2 leads to lower pH, higher bicarbonate levels, and lower carbonate levels.
5. -Optimistic: As the years want from 1865 to 2090 the corals shrink as the amount of carbon dioxide increased with the pH 7.92.
-Middle Ground: The corals shrink even more with higher carbon dioxide level and the pH for year 2090 is 7.83.
-Pessimistic: The corals size decreased with higher carbon dioxide level, withe pH level for 2090 is 7.73.
6. Sort each of the organisms into Calcifiers or Non-Calcifiers:
7. Describe the life cycle of Echinoderms and explain why they are so sensitive to changes in pH.
- Echinoderms have internal skeletons made of magnesium calcite from calcium carbonate, which makes them the most senstive to ocean acidification. Echinoderms started as a 2 cell embryo, grow into young sea urchins larva, then into a late stage larva, and they become juveniles crawling out of their larval body. After the juveniles grow after metamorphosis, they finally become sea urchins adult.
- Echinoderms have internal skeletons made of magnesium calcite from calcium carbonate, which makes them the most senstive to ocean acidification. Echinoderms started as a 2 cell embryo, grow into young sea urchins larva, then into a late stage larva, and they become juveniles crawling out of their larval body. After the juveniles grow after metamorphosis, they finally become sea urchins adult.