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7 th grade Science/EQT Study Guide

This study guide covers various components of blood, organs and systems in the human body, digestion, respiratory system, joint movements, and evolutionary concepts.

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7 th grade Science/EQT Study Guide

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  1. 7th grade Science/EQT Study Guide 2017

  2. Which component of blood carries oxygen to the body cells? • Red blood cells

  3. Which tissue in the skeletal system cushions the area where two bones meet? • Cartilage

  4. Many particles, such as dust, are inhaled when people breathe. Which part of the respiratory system filters out the majority of these particles? • Nose

  5. Which chamber of the heart pumps oxygen-poor blood to the lungs? • Right ventricle

  6. What kind of digestion does your stomach perform on your food? • Chemical & Mechanical

  7. Describe how the biceps and triceps work together? • One contracts, • while the other relaxes

  8. A patient is having trouble reabsorbing excess water from the digestive system. The first organ the doctor will most likely examine is the? • Large Intestines

  9. Which is a difference between the function of most arteries and veins? • Veins carry blood TO the heart, Arteries carry blood AWAY from the heart

  10. Which joint provides the greatest range of movement and allows you to move freely in all directions? • Ball & Socket

  11. Which type of muscle tires quickly during exercise? • Skeletal

  12. As blood flows to the heart from the toes and fingers, it travels mainly through tissue called? • Veins

  13. Sometimes when people eat, the food accidentally enters a tube near the beginning of the respiratory system instead of the digestive system. This causes a person to cough. In which part of the respiratory system can food sometimes get stuck and cause difficulty in breathing? • Trachea

  14. Redness and swelling may develop in an area near a wound. This reaction by the body means that white blood cells are being carried to that area by which of the body systems? • Circulatory System

  15. Which structure contains smooth muscle tissue? • Stomach

  16. If a person’s blood lacked platelets, which process could NOT take place? • Clotting of blood

  17. The function of white blood cells is to? • Fight Diseases

  18. Where is bile produced in the body? What does bile do? • Made in the Liver; • breaks down fats

  19. The circulatory system is made up of the? • Heart, blood and blood vessels

  20. What are the smallest vessels in the body called? • Capillaries

  21. Where does digestion begin? • Mouth

  22. What structure(s) enable(s) the small intestine to absorb large amounts of nutrients? • Villi

  23. The muscular, baglike organ attached to the lower end of the esophagus that continues the physical digestion of a meal is called the? • Stomach

  24. What is the path that food takes through the digestive system? • Mouth, esophagus, stomach, small intestine, large intestine, rectum

  25. What consists of irregular bones, and protects the spinal cord? • Vertebrae

  26. The correct order for the levels of organization for structure and function are: cells makes up tissues, _____________ makes up ________________, and organs make up _____________ systems. • Tissues, organs, organ systems Remember cells make tissues; Tissues make organs; Organs make organ systems; organ systems make organisms.

  27. In the respiratory system, what muscle contracts and pulls down allowing air to enter the nose? • Diaphragm

  28. What organ in the digestive system connects the mouth to the stomach? • Esophagus

  29. What process involves muscle contractions that move food through the esophagus? • Peristalsis

  30. Blood from the left ventricle goes to the? What type of blood is it? • Rest of the body; • Oxygen-rich

  31. What kind of motion is possible with a hinge joint? • Back and forth motion

  32. In what part of the body does most chemical digestion take place? • Small intestine

  33. What are the 3 main parts of the nervous system? • Brain, spinal cord, nerves

  34. What is a neuron? • A nerve cell

  35. Which type of fossil forms through carbonization? • Fossil film

  36. What causes variations to arise in a population? • Random mutations in genes

  37. Explain what extinction of a species means. • They no longer exist

  38. Why do scientists think the fossil record is incomplete? • The formation of fossils is rare

  39. What term describes the method used that resulted in certain pigeons with desired traits? • Selective Breeding

  40. Why do trace fossils provide so much information about how an organism lived? • The tracks can give scientists hints to an organism’s lifestyle

  41. Describe a source that can cause variations in a population of organisms. • Changes in genes

  42. According to the theory of natural selection, explain how some organisms are better adapted to a particular environment over other organisms. • They are able to Survive and reproduce at a greater rate

  43. Scientists compare DNA from a living organisms to identify ________________. • Relatedness between species

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