Which of the following is a nontoxic compound that is excreted as crystals mixed with just enough water to produce a thick, white paste?
A. Ammonium nitrate
B. Ammonia
C. Uric acid
D. Potassium sulfate
E. Urea
Answer: C
Biology & Microbiology
You might also like to view...
What is the main form of nitrogen found on Earth?
A) N2 B) NO C) NO3- D) NH4
Biology & Microbiology
Lignin is a complex polymer of methoxylated ________ compounds and is present in ________
A) silica / aquatic environments B) mineral / rocks C) oil / fossil fuels D) aromatic / vascular plant material
Biology & Microbiology
Prokaryotes may use several different terminal oxidases for the electron transport system.
Answer the following statement true (T) or false (F)
Biology & Microbiology
True or false? The steroid hormone ecdysone is made by insects, crabs and most vertebrates
Indicate whether the statement is true or false
Biology & Microbiology