An ecosystem includes all living and non-living things in a particular area, as well as the relationships between them. It is made up of the biotope, the physical environment, and the biocenosis, which includes all living things. Within an ecosystem, populations are groups of the same species that live together, while communities are collections of different populations that live in the same area. Ecosystems can change over time due to factors like pollution, overfishing, forest fires, and deforestation.

1. Ecosystems
Unit 3

2. An ecosystem
• Includes all of the living things and non
living things in a particular place.

3. An ecosystem also includes
• The relationships that exist between those
things.

4. A habitat is the place where
particular living things lives

5. Each animal and planta depends
on its habitat for food

6. An ecosystem is made up of
• The biotope and the biocenosis

7. The biotope
• It´s the physical environment. It includes
all of the non living things in a ecosystem.
• Soil, light, temperature…

8. The biocenosis
• Includes all the living things in an
ecosystem, such as plants, animals and
other organisms.

11. In a ecosytem there are:
• Population and communities

12. Population is
• A group of organism that live togheter and
belong to the same species.

13. Comunnity
• It´s a collection of different populations
that live together in one place.

14. In ecosystems there are two types
of relationships
• intraspecific: exists between members of
the same species.
• Extraspecific between members of
different species.

16. Trophic relationships

20. Pond ecosystems

21. Woodland ecosystems

22. Coast ecosystems

23. BIOSPHERE IS
• ALL THE ECOSYSTEMS ON THE
EARTH.

24. HABITAT

25. BIOME

27. ECOSYSTEMS CHANGE OVER
TIME

29. POLLUTION

30. OVERFISHING

31. FOREST FIRES

32. DEFORESTATION