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Science

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chapter 20 vocabulary
Vocabulary part 7
vocabulary part 8
Vocabulary part 7
vocabulry part 6
vocabulary part3
vocabulary part4
vocabulary part2
animal definitions
From Flower To Fruit
HOW DOES PLANT FERTILIZATION OCCUR?
endocrine glands
Plant Characteristics
THE MALE REPRODUCTIVE SYSTEM
FEMALE REPRODUCTIVE SYSTEM
nervous system
nervous system part 2
definitions on the cardiovascular system
BODY ORGANIZATION
Chapter HIGHLIGHTS Part 2
medtropilis
The Integumentaty System
DNA
How can DNA become damaged?
The Muscular System
quiz yourself
QUIZ part 2
Scientific method
Cell cycle
Cell Division
DEFENITIONS
test your brain
answers to test your brain!
vocabulary chapter 23
science time line on cell division
life science
need help
Gregor Mendel
Mendels second experiment
Terms to learn
Chapter Highlights
Vocabulary part 5
Chapter HIGHLIGHTS Part 2

Body Systems

  • Your body maintains a stable internal enviroment called homeostasis.
  • Four types of tissues work to maintain homeostsis.Each tissue has a special job to do.
  • tissues work together to form organs.
  • a group of organs working together for a common purpose is called an organ system.
  • there are 11 major organ systems in the human body.

SECTION 2

 

  • A joint is where two bones meet.Some joints allow alot of movement, some allow little or no movement.
  • Bones attach to bones by connective tissues called  ligaments.
  • The action of muscle on bones and joints often works like a simple machine called a lever.

SECTION 3

  • Skeletal muscels and tendons make up the muscular system.
  • you have  three types of muscles: SMOOTH, CARDIAC, and SKELETAL.
  • Muscles are attached to bones by tendons.
  • Exercise helps keeps your muscular system healthy.

SECTION 4

  • your skin,hair,and nails make up your integumentary system.
  • your skin has two layers that contain a veriety of small organs.
  • your hair and nails help protect your body.
  • skin can be damaged, but it has an amazing ability to repair its self.

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