The production of ________ by ________ is thought to be a major contributor to the biodeterioration of stone building materials
A) oxalic acid / fungi
B) sulfuric acid / sulfate reducers
C) nitric acid / nitrate reducers
D) carbonic acid / lichens
Answer: A
Biology & Microbiology
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Despite having smaller genomes, the protozoans Paramecium and Trichomonas have significantly more genes than humans
Indicate whether the statement is true or false.
Biology & Microbiology
One secondary spermatocyte ultimately produces ____ mature sperm
a. one b. two c. three d. four e. eight
Biology & Microbiology
Access to ____ is usually the main limiting factor for growth of aquatic algae and cyanobacteria
a. iron b. hydrogen c. oxygen d. carbon e. phosphorus
Biology & Microbiology
The movement of substances to regions of lower concentration is called?
What will be an ideal response?
Biology & Microbiology