Science: Living Things

Remember:

(I) All living things carry out THREE BASIC LIFE PROCESSES:
            - NUTRITION
            - INTERACTION
            - REPRODUCTION

Here you have a video to review and to learn more about these three vital functions.

(II) The ORGANISATION OF LIVING THINGS:

STUDY THIS!

     All living things are composed of basic units called CELLS.

  The cell is the basic structural and functional unit of all living things.

1) Unicellular organisms are composed by only one cell (bacteria).
2) Multicellular organisms are composed by many cells (animals and plants).

Animal cells have different parts: membrane, cytoplasm, nucleus and organelles. Besides, plant cells also have a cell wall and chloroplasts.

Watch this videos to learn more about cells:

PLANT CELL AND ANIMAL CELL: STRUCTURE

Learn more about cell organelles

In this link you can find out more about plant and animal cells:

animal and plant cells: virtual tour

Study this!

LEVELS OF ORGANISATION OF LIVING THINGS:

Many CELLS that have a similar job join together to form a TISSUE.

ORGANS are made up of different types of tissues that work together.
SYSTEMS are made up of organs that work together to carry out a function.

All the systems together form the living thing you see.

Watch this video so that you can understand these concepts better: