last year in 2012
How long have ecosystems existed
some ansewer this sht
The Aztecs existed in the Mesoamerican climate zone, which is characterized by a tropical climate with distinct wet and dry seasons. The area also has diverse ecosystems, including rainforests, mountains, and highlands, leading to variations in temperature and precipitation.
Petrified tree roots are important in understanding ancient ecosystems because they provide clues about the types of plants that existed in the past, the environmental conditions they lived in, and how they interacted with other organisms. By studying petrified tree roots, scientists can reconstruct the biodiversity and structure of ancient ecosystems, helping us to better understand the history of life on Earth.
Ecosystems
Saltwater/Marine ecosystems and Freshwater ecosystems.
Stable ecosystems.
Various life forms have existed on Earth, including bacteria, plants, animals, and humans. These life forms have evolved over billions of years to adapt to different environments and ecosystems on our planet. Additionally, extinct life forms such as dinosaurs and ancient mammals have also played a significant role in Earth's biodiversity.
Salinity is the abiotic factor that separates marine ecosystems from river ecosystems. Marine ecosystems have high salt content in water, while river ecosystems have low salt content.
they are ecosystems!
this is about ecosystems!
If Antarctica never existed, then it never would have existed.