Question

Cyanobacteria, also known as blue-green algae, are a kind of bacteria found in many lakes. These organisms make their own food through photosynthesis. Small animals including mayfly larvae eat the cyanobacteria, and small fish such as yellow perch eat the larvae. The small fish provide food for larger fish, such as walleye.

Describe a model you could use to show the transfer of energy within the lake ecosystem. In your description of your model, make sure you include the position of each organism identified in the paragraph.

Answer 1

the transfer of energy in a lake ecosystem is a food web. In this model, the cyanobacteria are at the bottom and they are eaten by mayfly larvae. which is the larvae and then eaten by small fish like yellow perch, which are in turn eaten by larger fish such as walleye. The food web would be represented by arrows, showing the flow of energy from one organism to another. Each organism has a specific position in the food chain, with producers at the bottom and top predators at the top. This model demonstrates how energy is transferred through different levels .

Step-by-step explanation:

Cyanobacteria, formerly known as blue-green algae, are photosynthetic microscopic organisms that are technically bacteria. They were originally called blue-green algae because dense growths often turn the water green, blue-green or brownish-green.

Cyanobacteria are aquatic and photosynthetic, that is, they live in the water, and can manufacture their own food. Because they are bacteria, they are quite small and usually unicellular, though they often grow in colonies large enough to see. They have the distinction of being the oldest known fossils, more than 3.5 billion years old, in fact! It may surprise you then to know that the cyanobacteria are still around; they are one of the largest and most important groups of bacteria on earth.

Answer 2

Girly I got you!

One possible model that could be used to show the transfer of energy within the lake ecosystem is a food web. A food web is a model that shows the flow of energy from one organism to another in an ecosystem.

In this food web, cyanobacteria would be at the bottom of the food chain, as they are producers that make their own food through photosynthesis. The mayfly larvae would be next in the food chain, as they eat the cyanobacteria. The small fish, such as yellow perch, would be at the next level of the food chain, as they eat the mayfly larvae. Finally, the larger fish, such as walleye, would be at the top of the food chain, as they eat the small fish.

The food web would be represented by a series of interconnected arrows, with each arrow pointing from the organism being eaten to the organism doing the eating. For example, an arrow would point from the cyanobacteria to the mayfly larvae, indicating that the larvae eat the cyanobacteria. Another arrow would point from the mayfly larvae to the small fish, indicating that the fish eat the larvae. And so on, until the top of the food chain is reached.

Overall, this model would show how energy is transferred from one organism to another in the lake ecosystem, with each organism occupying a specific position in the food chain.