Describe the three basic levels in an ecosystem. Provide an example of each. (Site 1).

The three basic levels in an ecosystem are Producers, consumers and decomposers.

Explanation:

Producers: The green plants that make high energy molecule such as glucose (food) by the help of the sunlight is known as the producers.

     Example: Plants and blue-green algae.

Consumers: The small animals that feed on the plants for their energy requirement is known as consumers.

     Example: Rabbit, Goat, Cow et cetera.

Decomposers: The bacteria, fungi and other microorganism that feed on the dead and decaying animals and obtain energy from this organic matter is known as decomposers.

     Example: Winter fungus.

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the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

c. the initial amount of money placed in the savings account