(Originais Teachy 2023) - Question Medium of Biology

The Cerrado has a large part of its area on private lands, requiring the involvement of these properties for the preservation of this biome. Thus, some laws have been created to encourage the conservation of this biome. Which of these laws aims to protect the permanent preservation areas of the Cerrado?

The tissues of the human body perform specific functions and are organized into systems that ensure the organism's homeostasis. Imagine that a scientist, while studying the effects of a disease that affects skeletal muscle tissue, observed that, as a result of the disease, the contraction capacity of the muscle fibers was compromised. Based on this situation, describe: 1) The relationship between the structure of muscle fibers and their contractile function, including the main cellular components involved in this process. 2) Explain how a change in a tissue such as skeletal muscle can affect the functioning of other systems in the human body, considering the interdependence between tissues and systems for the maintenance of health.

The excreta produced by animals also help maintain environmental health as they serve as a source of nutrients for other living beings present in the animal's environment, thus contributing to the naturally established food chain in that ecosystem. What is the main function of these excreta in this context?