* Organization: Kangaroos are made up of complex, organized systems, from cells to organs to organ systems.
* Metabolism: They carry out chemical reactions within their bodies, including breathing, digestion, and energy production.
* Growth: Kangaroos grow and develop throughout their lifespan.
* Reproduction: They reproduce sexually, producing offspring that inherit their traits.
* Responsiveness: They react to stimuli in their environment, such as moving away from danger or seeking out food.
* Adaptation: Kangaroos have evolved over time to suit their Australian environment.
* Homeostasis: They maintain a stable internal environment, such as regulating body temperature.
In short, kangaroos display all the hallmarks of living organisms, making them undeniably alive.