1. Levels of organization and Body Systems

2. What do you already know about cells? How are organisms organized?

3. Can you think of the important word that is hidden below
Can you think of the important word that is hidden below? Raise your hand when you are ready to give an answer. 1
About 1.75 million ____ have been discovered on Earth. 6
Some ____ are multi-celled and some are uni-celled. 2
Also known as living things ?
Organism
Beetles are some of the most successful ________ on Earth. 5 3
All __________ have the 6 characteristics of life.
Organism 4
All __________ have the 4 needs of life.

4. Organisms are organized!
There are five levels of organization in advanced organisms. From the outside in, they are:
5. Organism
4. Organ Systems
3. Organs
2. Tissues
1. Cells
biggest
smallest

5. Level 5: ORGANISM
Definition: Any living thing. (It has all the characteristics of life.)

6. Level 5: ORGANISM
Organisms sometimes exist as unicellular (single cell), but most are multicellular (many cells) such as plants and animals.

7. Level 4: Organ System Organ + Organ = Organ System
Definition: a group of organs that work together and perform a specific task.
You have 11 organ systems in your body.
Ex: digestive system, skeletal system, etc.

8. Level 4: Organ System
Are there any organ systems we could live without?

9. Level 3: Organs Tissue + Tissue = Organ
Definition: A group of tissues working together
Examples Animal organs: Heart, stomach, brain, lungs, intestines
Plant organs: Roots, stems, leaves

10. Level 3: Organs

11. Level 3: Organs
Are there any organs we could live without?

12. Level 3: Organs

13. Level 2: Tissues Cells + Cells = Tissue
Definition: A group of cells that work together to meet a common purpose
No, not that kind of tissue! 

14. Level 2: Tissues
No, not that kind of tissue! 

15. Level 2: Tissues There are 3 kinds of plant tissue:
Dermal (protection)
Ground (storage and energy)
Vascular (transportation)

16. Level 2: Tissues There are four kinds of animal tissue: Nerve Muscle
Connective
Epithelial (protection)

17. Organ made of tissues
Connective tissue makes up organs like the bones, blood vessels, tendons, ligaments, etc…

18. Organ made of tissues
Nerve Tissue Makes up organs like the brain, spinal cord, and nerves.

19. Epithelial Tissue makes up organs like the skin, hair, and fingernails
Organs made of tissues
Epithelial Tissue makes up organs like the skin, hair, and fingernails

20. Organ made of tissues
Muscle tissue makes up organs like the heart, stomach, kidneys, lungs, biceps, etc…

21. Level 1: Cells
Definition: The basic unit of all living things

22. Level 1: Cells
Remember, an organism can be just ONE cell (unicellular), or else it is made of MANY cells (multicellular)

23. Level 1: Cells

26. Levels of Organization
Cells
Tissues
Organs
Organ
Systems
Organism

27. Includes eukaryotic and prokaryotic types
Can you think of the important word that is hidden below? Raise your hand when you are ready to give an answer.
Includes eukaryotic and prokaryotic types 1 1
Somatic ______ divide by mitosis 6
The ___ is the basic unit of life. 2 ?
Cell (s)
All living things are made of at least 1. 5
Gametes ______ divide by meiosis 3
Cell 4
A human has approx trillion ___.

28. Match the following to levels of organization…

29. The earthworm’s gizzard

31. Fire Lord Ozai

32. A human heart

33. A slice of a human heart

34. A human heart plus all the blood vessels in the body

35. A maple leaf

36. Epithelial, muscle, nerve, connective

38. ALL of the roots of a tree

39. Dermal _____, ground ______, and vascular _______

40. Muscle cells come together to form muscle _________

41. A plant’s vascular tissue is made up of plant _______.

42. Respiratory, circulatory, muscle, digestive, reproductive, skeletal, nervous These are all examples of __________.

43. These float around in your blood, bringing you oxygen.

44. Which of the following is an example of an organ
Which of the following is an example of an organ? A large intestine B inner lining of the stomach C digestive system D muscle fiber

45. Which of the following is an example of an organism
Which of the following is an example of an organism? A a mouse B a skull bone C a nerve cell D skin

46. Saliva contains an enzyme which begins to break down starch as soon as you put it into your mouth. If a person did not produce saliva, which would be most affected?
Most directly affected would be their _____________.
A digestive system
B blood cells
C nervous system
D liver