BY: LIZZY OLDHAM

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The Organization Of living Things

• BY LIZZY OLDHAM
• SARAH HOSTERT

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Introduction
In some ways, organisms are like machines. Some
machines have just one part. But most machines
have many parts. Some organisms exist as a
single cell. Other organisms have many even
trillions of cells (many smaller than the
period that ends this sentence).
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Machines
Simple Axe
Compound Car
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Organisms
Unicellular Paramecium
Multicellular Humans
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Humans are Multi-cellular

• Benefits of being multi-cellular
• 1) Larger Size
• 2) Longer Life
• 3) Specialization

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Larger Size

• Many multicellular organisms are small, but they
  are usually bigger than single-celled organisms.
• Larger organisms are prey for fewer predators.
• Larger predators can eat a larger variety of prey.

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LONGER LIFE

• The life span of a multi-cellular organism is not
  limited to the life span of any single cell.

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Specialization

• Each particular job is assigned to each type of
  cell.
• Specialization makes the organism more efficient.
• For example heart muscle cells contract and make
  the heart pump blood.

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Cell Specialization
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Tissue- a group of similar cells that perform a
common function
TISSUE

• Animals have four basic types of tissue nerve,
  muscle, connective, and protective tissue.
• In contrast, plants have three types of tissues
  transport, protective, and ground tissue.

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Transport tissue moves water and nutrients
through a plant. Protective tissue covers the
plant. Photosynthesis takes place in ground
tissue.
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Organ- a collection of tissue that carry out a
specialized function of the body .

• DID YOU KNOW THAT?
• Plants have organs too?

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Organ Systems
Organ system- a group of organs that work
together to perform body functions Respiratory
system Cardiovascular system Digestive
system Leaf systems Root systems Stem systems
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ORGANISMS
Anything that can perform life processes by
itself is called an organism. Unicellular and
Multicellular
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Structure and Function
In organisms, structure and function are related
Structure - the arrangements of parts in an
organism (shape and material). Function the job
the part does (normal activity of an organ or
system).
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