Which of the following would most likely
contain blood that needs to be cleansed?
a. the renal vein
b. the renal artery
c. the nephron
d. all of these
e. none of these
B
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The major reservoir of phosphorus is ____
a. sedimentary rock b. plant material c. groundwater d. the atmosphere e. ocean water
Gram-negative cell walls have an outer membrane that contains lipids and peptidoglycans
____________________ Indicate whether the statement is true or false.
What is a challenge that organisms living in an estuary face that other aquatic organism normally do not face?
A. changes in temperature at different depths B. daily changes in salinity C. movement of water D. light penetrating only through the photic zone E. damage from pollution
What cavities develop from the ventral cavity?
A. thoracic, abdominal, and pelvic B. cranial and thoracic C. pelvic and abdominal D. cranial and vertebral E. cranial, vertebral, and thoracic