Campbell Biology: Exam 3 Flashcards

Gas exchange in the aquatic salamander known as the axolotl is correctly described as

In which of the following organisms does blood flow from the pulmocutaneous circulation to the heart before circulating through the rest of the body?

The only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart are the

Which pair of mammalian blood vessels has blood that is the least similar in its gas content?

Exhaled air has ________ than inhaled air

From the right ventricle, blood floweth to the

What is the correct sequence of blood flow in reptiles and mammals?

The set of blood vessels with the lowest blood pressure driving flow is

Fish secrete their nitrogenous waste as

Birds secrete their nitrogenous waste as

An increased concentration of nitric oxide within a vascular bed is associated with

Small swollen areas in the neck, groin, and axillary (arm pit) region are associated with

The blood pressure is lowest in the

In the diagram, B is the

In the diagram, D is the

The diagnosis of hypertension in adults is based on the

The hormone that stimulates the production of red blood cells, and the organ where this hormone is synthesized, are

Heart rate will increase in the presence of increased

In mammals, most gas exchange between the atmosphere and the pulmonary blood occurs in the

Countercurrent exchange is evident in

Some human infants, especially those born prematurely, suffer serious respiratory failure because of

Air rushes into the lungs of humans during inhalation becasue

Breathing is usually regulated by

Water has a ________oxygen concentration than air

Frogs can absorb oxygen through their skin

Blood returning to the mammalian heart in a pulmonary vein draws first into the

Blood leaving the right atrium passes through the

When you hold your breath, which of the following blood gas changes first leads to the urge to breathe?

Blood leaving the left atrium passes through the

In the diagram, 2 is pointing to the

4 is pointing to the

9 is pointing to the

12 is pointing to the

6 is pointing to the

15 is pointing to the

Most of the exchange surfaces of multicellular animals are lined with

An example of a connective tissue is the

Food moves along the digestive tract as the result of contractions by

An example of a properly functioning homeostatic control system is seen when

Positive feedback has occurred when

In a survivably cold environment, an ectotherm is more likely to survive an extended period of food deprivation than would an equally sized endotherm because the ectotherm

Endothermy

The panting responses that are observed in overheated birds and mammals dissipates excess heat by

An example of an organism that has only behavioral controls over its body

A moth preparing for flight on a cold morning warms its flight muscles via

The thin horizontal arrows in the figure above show that

C is pointing to the

E is pointing to the

AC is pointing to the

Urea is produced in the

Which nitrogenous waste has the greatest number of nitrogen atoms

The nitrogenous waste that requires the most energy to produce is

The advantage of excreting nitrogenous wastes as urea rather than as ammonia is that

In animals, nitrogenous wastes are produced mostly from the catabolism of

The transfer of fluid from the glomerulus to Bowman's capsule

Within a normally functioning kidney, blood can be found in

The filtrate in the renal pelvis enters directly from

The filtrate in the proximal convoluted tubule of the human does not normally include

Human urine is usually more acidic than most other bodily fluids becuase

Increased ADH secretion is likely after

Which process in the nephron is least selective

Which of the following is excreted readily by aquatic animals because of its high solubility in the respiratory medium?

Which of the following is synthesized by mammals, most amphibians, sharks, and some bony fishes, and has lower toxicity than its nitrogenous substrate?