40. Circulatory System
Circulatory and Respiratory Anatomy
0:38 minutes
Problem 1c
Textbook Question
Textbook QuestionWhich of the following statements regarding the insect tracheal system is/are correct? Select True or False for each statement. T/F Tracheae dilate and constrict during flight or other types of movement, functioning as a 'breathing' mechanism. T/F Spiracles open into the body cavity, allowing direct contact between the air and hemolymph. T/F Tracheae carry oxygen to alveoli; here the oxygen diffuses into the hemolymph to be delivered to tissues. T/F Spiracles can close to minimize water loss.
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