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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
vocabulary part2

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Chapter17 vocabulary

  1. Down Feather-a fluffy, insulating feather that lies next to a bird’s body.
  2. Contour feather-a feather made of stiff, central shaft with many sides of borecole called barbs.
  3. Preening-the activity in which a bird uses its beak to spread oil on its feathers.
  4. Lift- an upward force on an object caused by different in pressure above and below the objects; lift opposites the downward of a pull of gravity.
  5. Brooding-when a bird sits on an egg until they hatch.
  6. Mammary gland-glands that secrete a nitrous fluid called milk.
  7. Diaphragm-the sheet of muscle underneath the lungs of mammals that helps draw air into the lungs.
  8. Monochrome-a mammal that lays eggs.
  9. Marsupial-a mammals that gives birth to live; paritillay-developed young that continues to develop inside the mothers pouch or skin fold.
  10. Placental mammal-a mammal that mourners its unborn offspring with a placenta inside the uterus and gives birth to well-developed young.
  11. Gestation period-the time during which an embryo develops within the mother.