(1) PO₂ in alveolar air
(2) PO₂ in venous blood

A) First item is greater than the second item.
B) First item is less than the second item.
C) First item is equal or nearly equal to the second item.

Maintaining the volume and composition of blood is the direct responsibility of which system?

A) integumentary
B) immune
C) digestive
D) urinary
E) circulatory

Consuming even a single mushroom of the genus ____ can be fatal.

A) Agaricus
B) Shiitake
C) Portobello
D) Amanita
E) Oyster

A pituitary tumor interferes with FSH secretion. How would this affect a male?

A) He would develop a feminine body contour.
B) He would not produce sperm cells.
C) He would have an erection.
D) There would be no effect as FSH is found only in females.
E) He would produce too many sperm cells.

What is the process in which one activated receptor can give rise to thousands of final products?

A) Signal transcription
B) Signal transmission
C) Signal transduction
D) Signal termination
E) Signal amplification

Parabasilids are excavates that lack functional mitochondria and lack a Golgi complex.

Which abdominal wall muscle originates on the iliac crest and the lower lumbar vertebrae?

A) Rectus abdominis
B) External abdominal oblique
C) Internal abdominal oblique
D) Transversus abdominis
E) Quadratus lumborum