#Question id: 11057
#Unit 10. Ecological Principles
Bombardier beetles release an explosive mixture of quinones and hydrogen peroxide from glands at the end of their abdomen when disturbed by grasshopper mice and other predators. This is an example of what kind of defense against predation?
#Question id: 11058
#Unit 10. Ecological Principles
The pufferfish, a common marine fish, has extensive spines that extend outward when it swallows water, becoming several times its normal size. This is an example of what kind of defense against predation?
#Question id: 11059
#Unit 7. System Physiology – Animal
A healthy, 45-year-old man is reading the newspaper. Which of the following muscles are used for quiet breathing?
#Question id: 11060
#Unit 7. System Physiology – Animal
A healthy, 25-year-old medical student participates in a 10-km charity run for the American Heart Association. Which of the following muscles does the student use (contract) during expiration?
#Question id: 11061
#Unit 7. System Physiology – Animal
The pleural pressure of a normal 56-year-old woman is approximately −5 cm H2O during resting conditions immediately before inspiration (i.e., at functional residual capacity). What is the pleural pressure (in cm H2O) during inspiration?
#Question id: 11062
#Unit 7. System Physiology – Animal
The alveolar pressure of a normal 77-year-old woman is approximately 1 cm H2O during expiration. What is the alveolar pressure during inspiration (in cm H2O)?