In humans, digestion starts in the mouth and continues through the esophagus, stomach, small intestine, and large intestine. Teeth play a crucial role in breaking down food physically.
◆ Diagram: A diagram illustrating the human digestive system, showing the path food takes from the mouth to the anus, highlighting key organs like the stomach, small intestine, and large intestine.
The interdependence of life means that all living things rely on each other and their environment. Ecosystems have biotic (living) and abiotic (non-living) factors. Food webs show how energy flows through an ecosystem.
▸ Ecosystem — A biological community of interacting organisms and their physical environment.
Example: A forest, a pond, a desert.
Audio narration — reads aloud, works offline
In your own words, summarise the main idea of this lesson.