Which of the following statements about ecosystems is false?

a.) in the process of energy conversions within an ecosystem, energy is eventually converted to heat.
b.) bacteria and fungi recycle energy within an ecosystem.. plants and other photosynthetic organisms are producers in ecosystems.
c.) the \"web of relationships\" within an ecosystem includes the nonliving components of the environment.
d.) chemical nutrients cycle within an ecosystem's structural web.

The false statement about an ecosystem is bacteria and fungi recycle energy within an ecosystem. Plants and other photosynthetic organisms are producers in ecosystems.  

EXPLANATION  

Decomposers are organisms whose function is to decompose (break down) dead organisms. Decomposition is a natural process. Just like herbivores and predators, decomposers also have heterotrophic properties. Heterotrophic means that these organisms use organic substrates to obtain energy, nutrients, and carbon for their growth and development.

The terms decomposer and detritivore are often used recklessly. Decomposers can directly absorb nutrients from dead organisms using chemical and biological processes without swallowing them first. Whereas detritivores must ingest and digest dead organisms through internal processes. Thus, animals such as sea cucumbers, woodlice, and earthworms are technically detritivores rather than decomposers, because these animals must swallow the organism first and then digest the nutrients in an internal process.

In the ecosystem, decomposer is considered as an important organism in waste. Fungi and bacteria are known as reliable decomposers. Fungi can use their hyphae to penetrate large amounts of organic material to the subsurface. Basically, fungi and bacteria absorb nutrients from dead organisms, not reproducing energy.

LEARN MORE

If you’re interested in learning more about this topic, we recommend you to also take a look at the following questions:

Which ecosystem contains 32% of the world's producers?

KEYWORD: decomposer, detritivores, fungi and bacteria

Subject: Biology

Class: 10 - 12

Subchapter: Ecosystem  

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