Transportation in plants and animals

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Across
  1. 2. Upper chamber of the heart that receives blood from the veins and forces it into the ventricles
  2. 3. The number of heartbeats per minute
  3. 7. Liquid bringing oxygen and nutrients to the cells of the body made up of red blood cells, white blood cells, and platelets
  4. 10. Glands that eliminate substances like sterol, hydrocarbons and waxes through sebum
  5. 11. Hollow, muscular organ that contracts in a rhythmic pattern to pump blood throughout the body
  6. 12. It is a tuft of capillaries formed by the afferent arteriole
  7. 14. The process by which food materials from the leaves is carried to other parts of the plant
  8. 15. Bottom chambers of the heart
  9. 18. The continuous movement of blood through all parts of the body under the action of the heart
  10. 19. The region of the root immediately behind the meristematic zone is called zone of ________
Down
  1. 1. A clear-to-white fluid made of: White blood cells, especially lymphocytes
  2. 4. Contracting of the heart, where ventricles pump blood out
  3. 5. It is a process by which urine is removed from the body
  4. 6. Blood vessels that carry oxygenated blood away from the heart
  5. 8. Relaxing of the heart, where atria refill with blood
  6. 9. The smallest blood vessels were gas (oxygen and carbon dioxide) and waste exchange takes place with cells
  7. 13. It is the type of circulation where the deoxygenated and oxygenated blood is circulated in the lungs and heart
  8. 16. Blood vessels that carry deoxygenated blood to the heart
  9. 17. The double walled membrane that protects the heart