Science

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Across
  1. 2. the outer and usually smaller of the two bones between the knee and the ankle parallel with the tibia.
  2. 5. the force that attracts a body towards the center of the earth, or towards any other physical body having mass.
  3. 6. something pledged as security for repayment of a loan, to be forfeited in the event of a default.
  4. 10. the bone of the thigh or upper hind limb, articulating at the hip and the knee.
  5. 11. the degree of compactness of a substance.
  6. 13. a flexible but inelastic cord of strong fibrous collagen tissue attaching a muscle to a bone.
  7. 15. the ability to endure an unpleasant or difficult process or situation without giving way.
  8. 16. the study of the mechanical laws relating to the movement or structure of living organisms.
  9. 19. a medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms.
  10. 21. relating to or denoting a type of joint which is surrounded by a thick flexible membrane forming a sac into which is secreted a viscous fluid that lubricates the joint
  11. 23. a thin fibrous cartilage between the surfaces of some joints, e.g. the knee.
  12. 24. the main artery of the body, supplying oxygenated blood to the circulatory system. In humans it passes over the heart from the left ventricle and runs down in front of the backbone.
Down
  1. 1. the inner and typically larger of the two bones between the knee and the ankle parallel with the fibula.
  2. 3. relating to, involving, or requiring free oxygen.
  3. 4. the resistance that one surface or object encounters when moving over another.
  4. 7. each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed.
  5. 8. a vehicle's capacity to gain speed.
  6. 9. the refusal to accept or comply with something
  7. 12. the study of the properties of moving air and the interaction between the air and solid bodies moving through it.
  8. 14. a part of an organism which is typically self-contained and has a specific vital function.
  9. 17. firm, flexible connective tissue found in various forms in the larynx and respiratory tract, in structures such as the external ear, and in the articulating surfaces of joints. It is more widespread in the infant skeleton, being replaced by bone during growth.
  10. 18. the ability of an object or material to resume its normal shape after being stretched or compressed; stretchiness.
  11. 19. relating to or requiring an absence of free oxygen.
  12. 20. the application of scientific knowledge for practical purposes, especially in industry.
  13. 22. a warm-blooded vertebrate animal of a class that is distinguished by the possession of hair or fur, females that secrete milk for the nourishment of the young, and (typically) the birth of live young.