Fertilization of an egg usually occurs in the upper third of an oviduct
Indicate whether the statement is true or false
TRUE
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Explain how you would use Robert Koch's postulates to determine that Streptococcus pyogenes is the causative agent of streptococcal pharyngitis ("strep throat")
What will be an ideal response?
Oxygen (O2) makes up about 21% of the Earth's atmosphere. The graph below depicts changes in atmospheric O2 levels measured between the years 1990 and 2008. During what season would you expect oxygen levels to be lowest in a single year?
A. summer B. fall C. winter D. spring
In the vertebrate kidney, reabsorption and secretion take place in the renal tubules; after that, the filtrate enters the collecting ducts as ____
Fill in the blank with the appropriate word.
Which of the following structures is not matched properly with its function?
A. collecting ducts: selective reabsorption of key electrolytes and solutes B. glomerulus: filtration C. renal tubules: secretion of additional wastes D. ureter: transport of urine to the bladder E. bladder: storage and elimination of urine