The law of conservation of matter states that matter cannot be created, yet matter is sometimes gained or lost to an ecosystem. What is the reason for this seeming contradiction?
A) Chemoautotrophic organisms can convert matter to energy.
B) Matter can be moved in/out of an ecosystem from/to another ecosystem.
C) Photosynthetic organisms convert solar energy to sugars.
D) Detrivores convert matter to energy.
E) Heterotrophs convert heat to energy.

Question

Quizplus · Accepted Answer

The law of conservation of matter applies to a closed system, but ecosystems are not closed systems. Matter can enter or exit an ecosystem through various means, such as through the consumption of food or the release of waste products. Therefore, while matter cannot be created or destroyed within an ecosystem, it can be gained or lost from other ecosystems or the environment.

The Law of Conservation of Matter States That Matter Cannot