1. Warm Up 1-3-2017 Fill in the blanks and write 1 paragraph
My 2 weeks vacation from school was ________. I did __________.

2. Science Warm Up
What cell structure stores water and is indicated by the number 1 in the diagram?
Lysosome
Mitochondria
Chloroplast
Vacuole

3. Remember your Cell Project is due soon (date extended until Monday1-9-17)
You may still bring it in on this Friday if completed
You may work with a classmate that takes my class the same period as you.(Both people must present project in order to receive credit).
Remember this project consists of a written portion and a 3D model of a cell in order to get full credit.

4. Examples of 3D cells

7. GLE
GLE Summarize how the different levels of organization are integrated within living systems. GLE Describe the function of different organ systems and how collectively they enable complex multicellular organisms to survive.

8. Read pages 206-209 Answer questions # 1-6 on page 209

9. Levels of Organization
Ms. Stanford
7th Grade Science

10. Levels of Organization
Within multi-cellular organisms there is division of labor. Division of labor means that the work (labor) of keeping the organism alive is divided (division) among the different parts of the body. Each part has a job to do and as each part does its special job, it works in harmony with all the other parts.
The arrangement of specialized parts within a living thing is sometimes referred to as levels of organization. Cells are the first level of organization. Cells are the smallest unit that can perform all life processes.

11. Cells: LOTS of Different Kinds. Here are two examples
Cells: LOTS of Different Kinds! Here are two examples. Can you guess what kind?

12. Second Level: Tissues
In any multi-cellular organism, cells rarely work alone. Cells that are similar in structure and function are usually joined together to form tissues. Tissues are the second level of organization.
There are four basic/major types of tissues in the human body: 1.Muscle tissue
2. nerve tissue
3. connective tissue
4. epithelial tissue. (There are other kinds of tissues besides these.) Other kinds of tissue include bone tissue (a strong solid tissue that gives you shape and support) made of bone cells in your body form bone tissue. Blood cells in your body are part of blood tissue, a liquid tissue responsible for transporting food and oxygen throughout the body.

13. Cells
Here are some cells but if you look closely, you can see that they all look similar. Nerve cells working together make nerve tissue, and skin cells make up a special type of epithelial tissue.

14. Taken One At A Time….
Connective tissue connects and supports parts of the body. Blood, fat, ligaments, cartilage, bones, and tendons are all connective tissues.
Nerve tissue carries messages back and forth between the brain and every other part of the body. The brain, spinal cord, and nerves are made up of nerve tissue.
Epithelial tissue covers and lines the surfaces of your body and organs, inside and out. They primarily serve as protective barriers. Skin is one example.
Muscle tissue can contract, or shorten. Because of this, muscle tissue makes parts of your body move.

15. Level Three: Organs When a collection of different types of tissues work together, they form an organ. Organs carry out specialized functions of the body. There are many organs in the body. How many can you name??

16. Level Four: Organ Systems
Each organ in your body is part of an organ system, a group of organs that work together to perform a major function.
For example, your heart is part of your circulatory system, which carries blood, oxygen and other materials throughout your body. Besides the heart, blood vessels are organs that work in your circulatory system.

17. The levels of organization from simplest to most complex are:
Cells
Tissues
Organs
System
Organism

18. Let’s Review…. 1st Level: Cells working together form
2nd Level: Tissues, which can form
3rd Level: Organs, which work together to form
4th Level: Organ Systems, which work together to form
5th Level: Organisms!

19. Science Closure
What are the 5 levels of Organization of Life from smallest to largest?

20. The nervous system detects and interprets information from the environment outside the body and from within the body; controls most body functions. Brain, Spinal Cord, Nerves
The immune system aka Lymphatic System fights off disease.
The excretory system aka urinary system removes wastes.
The endocrine system controls many body processes by means of chemical messages, like hormones.

21. The muscular system enables the body to move; moves food through the digestive system, and keeps the heart beating.
The skeletal system supports and protects the body, and works with the muscular system to allow movement; makes and stores blood cells and stores some other materials.
The integumentary system acts as a barrier against infection & injury. Skin, hair, nails

22. The digestive system takes food into the body, breaks the food down into smaller particles, and absorbs the digested materials.
The respiratory system takes oxygen into the body and eliminates carbon dioxide. Lungs, nasal passage, mouth
The reproductive system produces cells that can unite with other cells to create offspring; controls male and female characteristics.

23. Let’s Review…. 1st Level: Cells working together form
2nd Level: Tissues, which can form
3rd Level: Organs, which work together to form
4th Level: Organ Systems, which work together to form
5th Level: Organisms!

24. Science Closure
Brain, Spinal Cord Which organ system do the organs above belong to? A. endocrine B. cardiovascular C. musculoskeletal D. nervous

25. Academic Enrichment Closure 1-8-13
Which of the following statements describes how two organ systems work together? A. The muscles of the muscular system contract and relax. B. The integumentary system protects the body from disease. C. The skeletal system and muscular system make it possible to move. D. The skeletal system and integumentary system work together to produce blood cells.