Characteristics of Living Things - Biology is Fun!
Biology
Lesson Notes
Characteristics of Living Things
By the end of this topic you should be able to:
identify the vital functions characteristic of all living things
recognize the cell as the basic unit of any living organism
comprehend the common features of all cells as well as the basic differences between animal and plant cells
analyze the relation between the structure and function of specialized cells
understand that cells, tissues, organs and systems represent increasing degree of organization in living organisms
Form 3/SS+NS/ss/12-13
Characteristics of Living Things
Biology
Lesson Notes
The Seven Vital Functions
Living things include microbes, plants and animals. They live on the land and in the lakes, rivers, and seas.
All very different but all are alive. All can perform some common features These are the Seven Vital Functions. Only living things have all of these features
They are "tests" of being alive.
The Vital Functions are processes that all living organisms do. They tell you whether something is alive or not.
Form 3/SS+NS/ss/12-13
Characteristics of Living Things
Biology
Lesson Notes
Movement
Living things move without outside help. Non-living things move under external forces (e.g. machines, something falling).
Organisms like animals can move their whole body
(E.g. walking, running, etc.)
Form 3/SS+NS/ss/12-13
Organisms like plants can only move parts
of their body (E.g. opening and closing
of flower petals)
Characteristics of Living Things
Biology
Lesson Notes
Can you match these types of movement to the pictures?
Flying
Venus fly-trap catching insects
Swimming
Chasing for food
Form 3/SS+NS/ss/12-13
Migration
Turning flower towards sun
Characteristics of Living Things
Biology
Lesson Notes
Sensitivity (Irritability)
Living things respond to conditions around them. Organisms can identify stimuli in their surroundings and respond to them.
Stimulus
Organism
Response
Green plants growing toward sunshine
Blinking when light shines Jumping up when stepping
into their eyes
on a sharp pointed object
like a pin
Form 3/SS+NS/ss/12-13
Characteristics of Living Things
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