Characteristics of Living Things
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.)
Organisms like plants
can only move parts
of their body
(E.g. opening and closing
of flower petals)
Form 3/SS+NS/ss/12-13
Characteristics of Living Things
Biology
Lesson Notes
Can you match these types of movement to the pictures?
Flying
Chasing for food
Form 3/SS+NS/ss/12-13
Venus fly-trap
catching insects
Migration
Swimming
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
Green plants growing
toward sunshine
Form 3/SS+NS/ss/12-13
Organism
Blinking when light shines
into their eyes
Response
Jumping up when stepping
on a sharp pointed object
like a pin
Characteristics of Living Things
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