Question

Which statement about ecosystems is false? a. Bacteria recycle nutrients through decomposition.b. In the process of energy conversions within an ecosystem, some energy is converted to heat. c. Chemical nutrients cycle within an ecosystem. d. Plants and other photosynthetic organisms are producers in ecosystems.

Answer 1

Answer:

Option C, Chemical nutrients cycle within an ecosystem.

Explanation:

Chemical nutrient cycle does not necessarily take place only with single ecosystems. It however inclusively links with several ecosystems at a time. For example a water cycle involves interaction between different spheres of the earth's atmosphere involving both biotic and abiotic components such as rivers, lakes, rain etc. Likewise oxygen, nitrogen and carbon cycle also circulates through a food web involving several food chains, and atmospheric spheres.  

While all other options are correct as in all ecosystems plants and green chlorophyll containing species acts as producer, some portion of energy is converted and lost as heat while energy is transferred from one trophic level to other and in every ecosystem, microbes such as bacteria decompose dead organic material into useful minerals.  

Option C is correct

Answer 2

Answer:

None of the option is false.

Explanation:

Ecosystem includes the interaction of all the different things present in the ecosystem. The two main component of ecosystem are living component includes plants and all other living organisms and non living component  includes temperature, soil, light.

The energy is converted into the ecosystem and some energy is lost in the firm of heat or respiration. The decomposition cycle occurs with the help of bacteria. All the chemical and physical nutrient recycle in the ecosystem. Producers are the organisms that can prepare their own food like plants.

Thus, the correct answer is none of the option is false.