BIO111 biology- Ecology lectures 16 to 18 summary

BIOLOGY

BIO 111

LECTURES 16-18

ORGANISMS AND THE ENVIRONMENT


Learning objectives

 The interactions between abiotic factors on living organsims

 The interactions between abiotic environment and living organisms

 The interaction bêtween living organisms



Unifying Principles of life

1. Cells – the cell theory

2. Evolution

3. Homeostasis ( Response to environment)

4. Energy: Metabolism

5. Reproduction, Growth & Development

6. Heredity & Inheritance

7. Living things interact with the abiotic and biotic environment

, Abiotic factors

These are the non-living factors of the Earth which affect the ability of living
organisms to survive in an environment.

Include both physical and chemical factors.

For example

Physical Chemical
Energy: gases

Heat, light, and sound
Soil elements
availability of water compounds
pH


What abiotic factors interact with livings things (organisms)?

Climatic Factors

 Temperature

 Pressure

 Humidity

 Rainfall

 Sunshine

 cloud and wind

in a given place and time is called weather. Weather refers to the daily or weekly
changes

The average weather conditions of an area, which includes atmospheric conditions,
and seasons.