Exam 34: Respiration

Which of the following represents the correct air pathway during exhalation?

Birds are able to sustain long flights at high altitudes because they

The respiratory control center consists of

Horsehair worms, in the phylum Nematomorpha, do not have a respiratory system. They are usually found in puddles of water or on damp sidewalks and patios, or they may come wiggling out of insects. These creatures have no economic importance other than being parasitic to some insects. Based on this scenario, horsehair worms are most likely to

The receptors in the respiratory center are most sensitive to a small

Which of the following organisms would use its skin as a primary respiratory surface?

Which of the following structures is the site of gas exchange in the human lung?

When a cell is active, the levels of carbon dioxide are_________ inside the cell than outside the cell, causing the gas to diffuse out of the cell.

Most of the carbon dioxide released from cells is transported in the blood as

Which of the following groups of animals is most efficient at extracting oxygen from the atmosphere?

Which of these structures is analogous in function to the alveoli of humans?

The surface area of all respiratory systems must be large compared with the size of the animal involved because diffusion is a relatively slow process.