Transcript Unit 4 – Animal Systems  This unit will focus on human systems  In unicellular (single-celled) organisms, the single cell performs all life functions.

Unit 4 – Animal Systems
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This unit will focus on human systems
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In unicellular (single-celled) organisms, the single cell
performs all life functions - it functions independently.
However, multicellular (many celled) organisms have
various levels of organization within them. Individual cells
may perform specific functions and also work together for
the good of the entire organism. The cells become
dependent on one another.
Multicellular organisms have the following 5 levels of
organization ranging from simplest to most complex:
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levels of organization:
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cells → tissues → organs → organ systems → organism
Level 1 - Cells
 Are
the basic unit of structure and
function in living things.
 May serve a specific function within
the organism
 Examples- blood cells, nerve cells,
bone cells, etc.
Level 2 - Tissues
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Made up of cells that are similar in structure and
function and which work together to perform a
specific activity
Examples - blood, nervous, bone, etc.
Humans have 4 basic tissues: connective,
epithelial, muscle, and nerve.
Level 3 - Organs
 Made
up of tissues that work together
to perform a specific activity
 Examples - heart, brain, skin, etc.
Level 4 – Organ Systems
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Groups of two or more organs that work
together to perform a specific function for the
organism.
Examples - circulatory system, nervous system,
skeletal system, etc.
The Human body has 11 organ systems circulatory, digestive, endocrine, excretory
(urinary), immune (lymphatic), integumentary,
muscular, nervous, reproductive, respiratory, and
skeletal.
Level 5 - Organism
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Entire living things that can carry out all basic
life processes. Meaning they can take in
materials, release energy from food, release
wastes, grow, respond to the environment, and
reproduce.
Usually made up of organ systems, but an
organism may be made up of only one cell such
as bacteria or protist.
Examples - bacteria, amoeba, mushroom,
sunflower, human
Journey Through the Human Body
Systems
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This is intended to be an alternative to the regular
“lecture” format
Time frame – 3 classes – can be adjusted if necessary (if
you work hard and need the time)
This assignment based on this website:
http://river.vansd.org/14544/Adv_Biology/Jou
rney_of_the_Body/index.htm
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Follow the assignment expectations closely and keep
the evaluation rubric
There will be self-evaluation and teacher evaluation (see
rubric)
8 Human Body Systems
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Immune System
Nervous System
Excretory (Urinary) System
Respiratory System
Circulatory System
Digestive System
Muscular System
Skeletal System
- 3 not covered – Integumentary, Endocrine,
Reproductive
Journey Through the Human
Body Systems
Items to remember:
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20 question quiz (3-5 vocab terms, short answer
question, 10 multiple choice)
Keep it basic, try not to “cut and paste”!
Copernicus theme
Map of your system required
5 minutes minimum, 15 minutes maximum in length
Practice pronunciation of terminology
All group members should participate in preparation
& presentation
Follow the evaluation rubric
Final Exam – important details
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140 marks
35 questions from each unit (4 units)
Unit 4 - Body Systems
Questions from intro notes & presentation quizzes, (on
wiki)
 Multiple choice / matching
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Don’t be late (deduction for lateness)
A “no show” for the exam is not good for you (to
say the least)
Spare textbooks? Please return – they are expensive
and needed next semester!