Part A
Begin by selecting a freshwater or marine aquatic ecosystem as a model for your food web. Be specific. Choose a specific lake. Or, if you choose an ocean ecosystem, identify its geographical area and depth. Keep in mind that deep-sea organisms live in a completely different environment than surface aquatic organisms.

Next, conduct research on the following conditions in the ecosystem you chose. They influence the types of organisms that can live there.

geographical features
temperature
depth/light availability
salinity
pH
unique features that contribute to the ecosystem, such as other bodies of water that connect to it, unusual chemistry, and climate
Using the information you gathered, write a paragraph that describes conditions in the ecosystem.

A.Lake Tahoe is one of the most beautiful lakes known in the United States. It's also know for inspiring one of Bob Ross' paintings. The lake dark blue crystling water is surrounded by huge mountains and tall trees. The water tempature ranges differently throughout the year. On average, in the winter and spring the water is near 44 degrees fahrenheit During the summer it ranges around 63 degrees fahrenheit and in Fall it ranges around 58 degrees fahrenheit. Tahoes max depth is 1,644 feet which is about 0.31 miles. The salinity is about 0.5 parts per thousand and the pH is 7.0 TO 8.5.

B.Some producers in Lake Tahoe include; alder , aspen and sugar pines. An example of Lake Tahoes primary consumers may include; ducks and crayfish. Examples of secondary consumers are bears, and snakes. Some teriary consumers that Tahoe gives are sharks and snakes. Lake Tahoe also has mountian lions which are quaternary consumers.

Explanation: