Characteristics of life
An organism
All livings things are what?
Organised
What is the smallest unit of organization?
A cell
What two parts of a microscope do you hold when moving it?
The arm and the base.
How do all organisms begin life?
With a cell
What is the difference between unicellular and multicellular?
Unicellular has one cell and multicellular has many cells.
What is meant by extinction?
No animals left by a species.
A single cell by itself can form what?
an entire living organism.
What do the stage clips do?
They hold the slide in place so it does not move.
Do all organisms grow at the same rate?
no
What is the definition of reproduction?
It is the production of offspring.
What is the ocular lense?
The lense we look through with our eye.
What are the next step that cells become as they organize?
Cells become tissues, origins, and origin systems.
What is the definition of a diaphragm?
A diaphragm controls the amount of light that goes into the slide.
What is the difference between growth and development?
Growth is the addition of cells and development changes that occur over the life span.
What do organisms need to do in order to stay alive and healthy?
They need to respond to the internal factors.
Do unicellular organisms grow?
They grow but they do not develop much.
Whether it is unicellular or multicellular all structures and functions of an organ do what?
They come together to form an orderly living system.
Where are the objective lenses located?
On the revolving nosepiece.
Over time what do organisms do?
They grow and take on the characteristics of their species.
Why is energy important?
It powers life processes.
How is the growth of a living thing different from a nonliving thing?
A living thing grows naturally and a nonliving thing does not.
Structures that contain dead cells or pieces of cells are considered what?
They are considered dead.
How do you calculate the total magnification?
You times the ocular lense with the objective lense.
All of the changes that take place during the life of an organism are known as what?
Its development.