1. Ecology
Unit 1: Biology

2. Life on Earth Habitat – the place where an organism lives
Terrestrial habitats are found on land
Aquatic habitats are found in water

3. Earth`s Spheres: The Atmosphere
Is the thin layer of gases that surrounds Earth
Made up of water vapour, oxygen and carbon dioxide
Prevents Earth from getting too warm or too cold
Also blocks some of the sun`s radiation which can harm organisms

4. Lithosphere Is the rocky outer shell of the Earth
Mountains, ocean floors and the rest of the Earth`s landscape are part of the lithosphere

5. Hydrosphere Is the water on, above, and below the Earth`s surface
It includes oceans, lakes, ice, clouds, and groundwater.

6. Biosphere All the places on Earth where living things can exist.
These places are in the atmosphere, lithosphere and hydrosphere

8. Introducing Ecosystems
Ecology comes the Greek words
Oikos – The place where one lives
Logos – the study of
Ecosystem – all the living organisms in an area and their non-living environment

9. Living and Non-Living
Biotic factors – living organisms in an ecosystem
Can you think of some things around you that is living?

10. Biotic Examples
Deer
Trees
Fish
Insects
Humans
Roses
Dogs
Fungi
Etc.

11. Abiotic factors – the non-living features of an ecosystem
Can you think of some things around you that is non-living?

12. Abiotic Examples
Weather
Water
Rocks
Oxygen
Light
Soil
Temperature

13. Populations and Communities
Population – all the members of the same species that live in the same ecosystem
Community – all the living organisms, from all the populations, that live in the same ecosystem

14. Classwork/Homework
Complete Ecology Worksheet