Exam 31: Homeostasis: Internal Fluids and Respiration

The external openings to the tracheal systems of arthropods are called ________________.

Blood in vertebrates constitutes

Oxygen passes from the air sacs of the lungs into the blood capillaries by a process called __________________ along partial pressure gradients.

Which statement of red blood cell (RBC)structure or function is correct?

Is the separate "double circulation" of a mammal really superior to that of the incomplete circulation of a frog? Explain your reasoning.

Outline the structures and functions of the mammalian respiratory system (describe how breathing is coordinated).

An alternative name for the mouth is the ________ _________.

Trace a drop of blood from where it picks up oxygen in the lung to when it returns to the lung,naming the vessels and heart chambers and valves it passes in correct order.

The systemic circuit ultimately circulates blood from the

In very small organisms,or those with a large surface area relative to mass,substantial exchange of respiratory gases can take place by ____________ directly between the organism and its environment.