Details Title: 1020 Unit 6 Description: Unit 6 Total Flash Cards: 13 Created: 04/06/2009 15:33:51		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Biology Flashcards
Cards in this set: Term alveoli Definition tiny air sacs at the ends of the bronchioles in the lungs Term bronchi Definition tubes branching from the trachea and directing air into each lung Term brionchioles Definition tubes from the bronchi that lead to clusters of alveoli Term diaphram Definition muscle sheet at bottom of chest cavity; contraction of this muscle draws air into lungs Term ectotherm Definition organism who body temperature is determined by the environment temp. Term endosperm Definition food source for developing plant embryos Term endotherm Definition organism who body temperature is maintained independent of environmental temp. Term epiglottis Definition flap at the tap of the trachea that prevents food from entering or blocking air pathway Term metabolism Definition the collection of chemical reactions that occur in organisms Term spiracle Definition opening in arthropod body wall through which air enters trachea Term thermal strategy Definition metabolic patterns of organisms Term trachea Definition air tube leading from back of mouth down into chest cavity the "windpipe" Term tracheae Definition tiny tubes in insect body that deliver oxygen direclty to metabolizing tissues