Examine Figure 32.1. Near a goose's abdomen, the countercurrent arrangement of the arterial and venous blood vessels causes
A) the blood in the feet to be as warm as the blood in the abdomen.
B) the temperature at the abdomen to be less than the temperature at the feet.
C) the loss of the maximum possible amount of heat to the environment.
D) the venous blood to be as cold near the abdomen as it is near the feet.
E) the temperature difference between the contents of the two sets of vessels to be minimized.
Answer: E
Learn More :
AP Biology Chapter 32
- Positive feedback differs from negative feedback in that
- Which process in the nephron is least selective?
- Connective tissues typically have
- Antidiuretic hormone (ADH) functions at the cellular level by
- Low selectivity of solute movement is a characteristic of
- A primary reason that the kidneys have one of the highest metabolic rates of all body organs is that
- The reason that the steroid hormone aldosterone affects only a small number of cells in the body is that
- Prolactin stimulates mammary gland growth and development in mammals and regulates salt and water balance in freshwater fish. Many scientists think that this wide range of functions indicates that prolactin
- Ammonia
- Interstitial fluid is
- Unlike most bony fishes, sharks maintain body fluids that are isoosmotic to seawater, so they are considered by many to be osmoconformers. Nonetheless, these sharks osmoregulate at least partially by
- If a person loses a large amount of water in a short period of time, he or she may die from dehydration. ADH can help reduce water loss through its interaction with its target cells in the
- Fight-or-flight reactions include activation of
- During mammalian labor and delivery, the contraction of uterine muscles is enhanced by oxytocin. This is an example of
- Compared to wetland mammals, water conservation in mammals of arid regions is enhanced by having more
- A human who has no access to fresh water but is forced to drink seawater instead
- The thin horizontal arrows in Figure 32.1 show that
- Excretory structures known as protonephridia are present in
- The nitrogenous waste that requires the most energy to produce is
- The nourishment, insulation, and support for neurons is the result of activity by the
- Blood is best classified as connective tissue because
- For hormones that homeostatically regulate cellular functions,
- Urea is produced in the
- Increased ADH secretion is likely after