The Hierarchy of the Structure in Animals
Most organisms are composed of millions of cells all working together. These
organisms are called multicellular organisms and include a wide variety like…
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Since it would be difficult for each cell in a multicellular organism to perform all of
the necessary life processes ( i.e. pumping blood, removing wastes, digesting
food etc), cells group together and become specialized.
Define:
Hierarchy 
Arrange the following terms in their hierarchal order then define each one.
Cell 
Tissues 
Organ
Organ system
Types of ANIMAL TISSUES
In animals, cells specialize to form 4 types of tissues. The cells in each tissue work together to
complete important tasks.
1. Epithelial Tissue
- this tissue acts as a protective barrier
- found________________ (i.e. skin)
- _________________ lining the body cavity
- these tissues also produces chemicals like water, hormones, and enzymes(i.e.
to digest food).
2. Connective Tissue
- cartilage (cushions bones)
- ligaments
- blood
- tendons hold muscle to bones
3. Muscle Tissue
- tissues to help animals move.
-there are 3 types:
1) _________ -- move your bones
2) _________ -- can't control this type of muscle
3) _________ -- heart muscles which moves blood
4. Nervous Tissue - "Communication tissue"
- create and send messages which are called __________
- also stores information (i.e. memories)
Homework:
Read Chapter 3.3 & 3.4. Create a table in your notes.
Write down each organ that makes up the organ systems in the
human body and state its function.
Label the diagram of the digestive system.