N2 is an end product of ______________; NH3 is an end product of _______________
A. anammox; nitrogen fixation
B. nitrogen fixation; anammox
C. denitrification; anammox and nitrogen
fixation
D. anammox and denitrification; nitrogen
fixation
D
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Where in the chloroplast are sugars synthesized?
a. outer membranes of chloroplast b. thylakoid space c. stroma d. thylakoid membrane
The first truly living cells must have been prokaryotic in structure
Indicate whether the statement is true or false.
Which of the following characteristics of a protein will remain intact if the protein is denatured?
A) the shape of the protein B) the function of the protein C) the number of amino acids in the protein D) the binding properties of the protein
A 30-year-old woman who is not pregnant presents with a foul-smelling, greenish vaginal discharge, indicating some form of vaginitis. A smear is taken, and routine tests performed. A motile, unicellular eukaryote with multiple flagella and an undulating
membrane is observed in the microscope. What treatment is recommended? A) topical antifungal cream B) clindamycin C) combination therapy of ceftriaxone and azithromycin D) doxycycline E) single dose of metronidazole