Science Blow-out

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. One of usually two organs that produce ova and secrete estrogen and progesterone (5)
  2. 4. The science of matter (9)
  3. 10. The secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has (plural) (8)
  4. 11. The passage between the pharynx and the stomach (9)
  5. 12. The sequence of events involved in the ___ development of a species or taxonomic group (9)
  6. 14. The remains of a plant or animal that existed in a past geological age and that has been excavated (plural) (7)
  7. 15. The longest part of the alimentary canal (14)
  8. 16. Either of two bean-shaped excretory organs that filter wastes from the blood and excrete them (plural) (7)

Down

  1. 1. Either of two saclike respiratory organs in the chest of vertebrates (plural) (5)
  2. 2. Any of the ___ that deal with the ___ or its parts (12)
  3. 5. The process of generating offspring (12)
  4. 6. The sun with the celestial bodies that revolve around it in its gravitational field (11)
  5. 7. The point of connection between two bones or elements of a skeleton (plural) (6)
  6. 8. The branch of biology that studies heredity and variation in organisms (8)
  7. 9. Food and nutrients the body needs to grow (9)
  8. 13. A cell that is specialized to conduct nerve impulses (plural) (7)