What are the vasa recta?
a. capillary extensions of the afferent arterioles
b. capillary extensions of the efferent arterioles
c. regions of the renal tubule
d. vessels that supply blood to the glomerulus
e. vessels that supply blood to the proximal convoluted tubule
b
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When mature, the ovary is referred to as a(n) ____ that encloses the angiosperm seed
a. ovule
b. endosperm c. fruit d. carpel e. inflorescence
Ovulation is triggered by
a. high levels of LH. b. low levels of LH. c. low levels of estrogen. d. high levels of estrogen. e. high levels of progesterone
The earliest type of eukaryotic organism
currently known is a type of a. virus. b. bacterium. c. alga. d. anim
When the heart becomes weaker and less efficient at pumping blood, the blood may back up in the veins and cause a condition known as ________.
Fill in the blank(s) with the appropriate word(s).