Exam 24: Respiration

In which animal is a countercurrent flow system used to acquire oxygen?

Lungs are a more efficient method of respiration than gills.

All of the following obtain their oxygen by diffusion from surrounding water except:

On a statistical basis,smoking a single cigarette lowers your life expectancy:

What is the function of the epiglottis?

Where does gas exchange occur in terrestrial arthropods?

Animals remove _____ from organic molecules which drives the synthesis of _____.

It is impossible to get lung cancer unless you smoke cigarettes.

Each lung is covered by a thin,smooth membrane called a ___________ membrane.

Crosscurrent flow is more efficient than countercurrent flow of air.

How,and in what group(s),did the advent of lungs change the pattern of circulation?

The extra amount of air that can be forced into and out of the lung is called the:

Oxygen and carbon dioxide bind to the same sites on the hemoglobin molecule at different times.

Capturing energy by animals is in effect a process that utilizes ______ and produces ______.

Which of the following is incorrect about gills?

Rank the following methods of acquiring oxygen from most to least efficient.

The air remaining in the lung after a maximal expiration is the:

In the presence of carbon dioxide:

Blood flow and blood pressure are regulated by the amount of _____ released into the bloodstream.