Worn-out red blood cells are destroyed and the hemoglobin is degraded to a yellow pigment known as ____________________, which is excreted into the bile
Fill in the blank(s) with correct word
bilirubin
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A __________ heterotherm can retain heat in certain parts of the body
Fill in the blank with the correct word.
The main water-pushing force in the blood capillaries is:
a. blood pressure b. sodium in the blood plasma c. sodium in the interstitial fluid d. protein in the blood plasma
In the cat, the head is ________ to the tail. In the human, the head is ________ to the gluteal region (buttock)
A) ventral; distal B) posterior; dorsal C) superior; superior D) anterior; posterior E) anterior; superior
Without pulmonary surfactant,
a. small alveoli would tend to collapse. b. larger alveoli would tend to empty into smaller alveoli. c. all alveoli would be easier to inflate. d. the surface tension in the alveoli would be reduced. e. inspirations would be easier.