bio

2. The largest artery leaving the heart
4. Addition of substances to the fluid in a renal tubule
7. Digestive biochemical that emulsifies fats
10. The expulsion of waste from the body
12. Substance that initiates a primary immune response
13. A measure of the amount of potential energy stored in food.
16. Semifluid mass of food and gastric juice that moves from the stomach to the small intestine
17. system Organ system that acquires oxygen gas and releases carbon dioxide.
18. J-shaped compartment in the digestive tract; receives food from the esophagus
19. Enzyme that begins the digestion of proteins in the stomach
20. Semifluid mass of food and gastric juice that moves from the stomach to the small intestine.
22. The physical and chemical breakdown of food
23. Pigment that carries oxygen in red blood cells
27. Type of white blood cells; T cell,B cell or natural killer cell
28. Lymphoid organ in the upper chest where T cells learn to distinguish foreign antigens from self antigens
30. Boxlike structure in front of the pharynx

1. Two large tubes that branch from the tranchea
3. The process of taking in and incorporating nutrients or energy
5. Any substance that an organism uses for metabolism, growth, maintenance, and repair of its tissues.
6. bladder Muscular sac where urine collects
8. Cell fragment that orchestrates clotting in blood
9. Organ system that distributes blood throughout the body
11. Eating disorder in which a person eats large quantities and then intentionally vomits
14. Nutrient required in small amount
15. Organ that forms the entrance to the nasal cavity inside the head; functions in breathing and olfaction.
21. In plants, cells covering the leaves, stems, and roots
24. Slitlike opening between the vocal cords
25. Exaggerated immune response to a harmless substance
26. Watery, protein -rich fluid that forms the matrix of blood
29. Muscular, saclike organ where embryo and fetus develop