Present tense: I canât even find someone to lay tiles. Past simple tense: She laid her hand upon his arm. Present continuous tense: Weâre laying the groundwork for long-term economic growth. Past perfect tense: The government had laid their cards on the table. lie (1) = be in a horizontal position on a surface.
All the metabolic wastes are excreted in a form of water solutes through the excretory organs (nephridia, Malpighian tubules, kidneys), with the exception of CO2, which is excreted together with the water vapor throughout the lungs. The elimination of these compounds enables the chemical homeostasis of the organism.
In summary, the urinary system is one of the main organ systems responsible for extracting and eliminating toxic wastes from the body. The kidneys are the main organs of this system and are responsible for extracting waste components from the blood via a sophisticated filtration process.