The effects of snails and elodea in water essay

Snail Facts and Information. There is fossil evidence of primitive gastropods dating back to the late Cambrian period; this means that they lived nearly million years ago. There are many types of snails, but they fundamentally differ because they are aquatic or terrestrial. The former are adapted to live in the sea or bodies of fresh water, but the latter live exclusively on land, although in humid areas.

The effects of snails and elodea in water essay

Please refer to attachments 1 and 2 Groups: Contents of the test tube Dependent Variable: Carbon dioxide levels Control Group: Test tubes 7 and 8 that did not contain organisms Constants: Snail type, plant type, test tube type and size, water type and temperature, and BTB amounts Analysis of Data: Test tube 1 was placed in the light.

It was blue at the top and yellow on the bottom. The elodea floated at the top and the snail had sunk to the bottom. Test tube 2 was placed in the dark. It was yellow all the way through with both the snail and the elodea at the top. Test tube 3 was placed in the light. It was yellow all the way through and the snail was at the bottom.

Test tube 4 was placed in the dark.

Conclusion: Test tube one contained both a snail and an elodea, and was placed in the light. It was hypothesized to turn green. Instead, the water was blue at the top and yellow at the bottom. It was blue at the top, where the elodea was, because the elodea was using the . Elodea: Elodea, genus of five or six species of submerged aquatic plants in the frog’s-bit family (Hydrocharitaceae), useful in aquariums and in laboratory demonstrations of cellular activities. Elodea plants are native to the New World, though a number of species have established themselves as invasive. Naturally occurring substances also carry risks by disrupting the chemical balance in the air or water. A pollutant, therefore, is any substance that can cause harm. The effects of pollutants can.

It was a bluish-green all the way through and the snail was at the top. Test tube 5 was placed in the light.

The effects of snails and elodea in water essay

It was blue all the way through and the elodea was sitting at the bottom. Test tube 6 was placed in the dark. It was yellow all the way through and the elodea was at the top. Test tube 7 was a control, meaning there were no added organisms, and was placed in the light. Test tube 8 was also a control, and was placed in the dark.

Test tube one contained both a snail and an elodea, and was placed in the light. It was hypothesized to turn green. Instead, the water was blue at the top and yellow at the bottom.

Plasmolysis of Elodea

It was blue at the top, where the elodea was, because the elodea was using the light and the carbon dioxide to perform photosynthesis. Due to the elodea photosynthesizing, there was little carbon dioxide in the top portion of the water.

The bottom portion was yellow because the snail was not performing photosynthesis, because it is not a plant, and the snail was breathing out carbon dioxide. This factor is the cause of the bottom portion being yellow. Test tube two contained both a snail and an elodea and was placed in the dark.

It was hypothesized that the water would be yellow. After a day, the water was yellow, matching the hypothesis. The water was yellow all the way through because it was placed in the dark where the elodea could not get light energy and carry out photosynthesis.

Test tube three contained a snail and was placed in the light. In the hypothesis, it was stated that the water would remain yellow. After a day, the water was yellow, proving the hypothesis.- An Investigation into the Effect of Light Intensity on the Rate of Photosynthesis on a Piece of Elodea Plan: Method: 1) First I will put some water into a boiling tube and add 5 .

The effects of snails and elodea in water essay

alphabetnyc.com Photosynthesis and Cellular Respiration Virtual Lab Carbon Transfer through Snails and Elodea (30pts) Background: All organisms are dependent on a healthy carbon dioxide-oxygen balance.

Plants, through the process of photosynthesis, use energy absorbed from sunlight, water, and carbon dioxide to produce sugars and oxygen.

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How do snails affect the level of CO2 in the water? Does light or dark have an effect? How does Elodea affect the level of CO2 in the water?

Does light or dark have an effect? What tube best represents a balanced system? Explain. What would you expect to happen to the pH in a tube if the snail died shortly after being placed inside? What about. The Effects of Snails and Elodea in Water on Carbon Dioxide Levels Problem: How does varying the type of organism (plant or animal) in the level affect the level of carbon dioxide?

Predict - Explain how carbon dioxide (CO 2) cycles in aquarium water through snails and Elodea. Complete the following statement to develop your own hypothesis. If I add a snail and elodea to a test tube with bromothymol blue, then the water will turn yellow in light conditions and/or dark conditions.

The relationship between snails and elodea is symbiotic in that the snail eats algae and produces carbon dioxide. The elodea takes in the carbon dioxide and, through photosynthesis, creates oxygen, which the snail and every living thing in .

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