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33 Cards in this Set
- Front
- Back
What kind of organisms are considred producers?
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Plants, Algae, Cynobacteria
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In order to produce food, the producers need energy.Where do they get energy from?
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The sun
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What is the name of the process thaty transforms this energy into food?
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Photosynthesis
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What oragnisms in an aquarium might have the role of herbivores-animals that eat plants?
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Fish/Whale
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Name some carnivores-animals that eat other animals- that are, or may present, in the aquariam?
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Fish/Shark
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What chemical do consumers produce as part of their metabolism that is needed by the producers?
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Carbon dioxide
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What is the name the process that produces this chemical Carbon dioxide?
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cellular respiration
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Once the producers take up these minerlas from the water or soil how do the nutrient get transferred to the carnivores?
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They eat it.
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There must be some process that continually replaces these minerals taken up by the producers; what is the process called?
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Decomposition
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Which arrows in the chart repressent Decomposition?
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1. (7)(8)(9)(10)
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What kinds of organisms are responsible for this process of decomposition?
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Bacteria and Fungi
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Thermal Pollution
Human connection to pollutants |
*Electric Power Plants- heated water continually flows into the aquatic ecosystem, the temp rises and kills the the organisms unable to withstand the change in temp.
*Important-causes a decrease in the amount of dissovled oxygen avail. for organisms. Oxygen is driven out of the water by the rapidly moving molecules due to the heat. |
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Which arrows in the ecosystem diagram represent the transfer of carbon dioxide to plants for photosynthesis?
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5 and 11
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Acid Pollution
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* most aquatic ecosystems are between pH6 and pH7.
* Human blood os pH 7.4 *pH5 or lower is considered acid |
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The worm we used in our experiment.
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(4) planaria
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The number of drops of POA is equivalent to?
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The amount of dO2 saturation level.
Unit (ppm) |
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Part I
Thermal Pollution What was the procedure? |
-place the aquarium, where the planaria lived, boiled the water and let the water cool down to about room temperature.
-Then we placed some of that water into glass stopped bottle, filled the water to the top placed the the stopper on and removed excess air bubbles. -we added the Dissolved oxygen 1, then dissolved oxygen 2 (the water developed brown flakes), then dissolved oxygen three (the water became a dark yellowish brown color). Lastly,we extracted 5.8 ml of the water, placed it into a flask, to measured the dO2 saturation levels, by counting the number POA drops used to make the the water revert back to its original color. (9ppm) incomparison, the control's dO2 was 24ppm-sig.difference. Lastly, we placed the planaria into the bleaker which housed the boiled water, to see how it reacted. |
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How did the Planaria react to the Thermally polluted water?
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In comparison to our control, the planaria is distressed swimming constantly, move movement around the bleaker. It started at the bottom of the bleaker and made its way towards the surface. Eventually, it died.
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Part II
Acid Pollution What was the procedure? |
-We took a bleaker filled with aquarium water and added sulphuric acid until the water had a pH level of about 4.
- we did not test dO2 however, we tested the pH level which was a pH of 4. |
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How did the planaria react to the sulphuric acid treating water?
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-In comparison with our control, the planaria was definitely distressed.
- Immediately upon impact, It stayed in one spot, jerking its body violently - It eventually curled its body -The planaria remained in that one location at the bottom of the bleaker and died. |
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Microscope
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*Two lense system
*known as a Bright Field light (the object is dark compared to the background. |
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Eye piece
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ocular lense 10X
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Low powered objective lense
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10X
therefore, ocular X low powered equate to 20X |
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High powered
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40X
therefore, ocular x high powered equate to 400X |
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Oil immersion
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100X
therefore, ocular x oil immersion powered equate to 1000X |
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Prokaryotes
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* No DNA in nucleus
*Primitive *Smaller * appeared 3.6 bya *Do not contain internal organelle (membrane-bound structures) *Bacteria- unicellular |
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Eukaryotes
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*contain DNA in nucleus
*larger *more recent * appeared 1.8 bya *Contain internal organelles (nucleus, golgi complex, mitochondria, chloroplasts, etc.) *Fungi-yeast(unicellular) -mold(multicellular) *Protista-Protizoa(unicellular) Algae(colonial-uni) *Plantae- multicellular *animalia- muticelluar |
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plant cell (ELODIA) under microscope
low powered |
observed multiple cells
cell wall rectangular in shape cytoplasm |
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plant cell (ELODIA) under microscope
high powered |
the cytoplasm is constantly moving
chloroplasts(site of photosynthesis) moving around in the cytoplasm Nucleus was not clearly visible |
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Animal cell under microscope
low powered and high powered |
cell membrane
no cell wall no color-chloroplasts nucleus is clearly visible no shape mouth contains eukaryotic and prokaryotic cells |
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Animal RBC & WBC
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RBC contains no nucleus
WBC contains a nucleus |
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Protozoa under miscroscope
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mostly found in ponds
oval in shape unicellular granules vacuoles are visible contain either flagella or cilia(external structures for movement) |
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Bacteria under microscope
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not clearly visible, dark black specs
located in human cell |