Sulfate-reducing bacteria (SRB) are very important in the cycling of sulfur within ecosystems because significant amounts of sulfate are present in almost all aquatic and terrestrial habitats, making SRB widespread and active.

Answer the following statement true (T) or false (F)


True

Biology & Microbiology

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A species goes extinct without any clear, single cause. 

A. hotspot B. habitat loss C. edge effects D. megafaunal extinction E. extinction vortex

Biology & Microbiology

Carbon-12, Carbon-13 and Carbon-14 are examples of:

A. ions B. isomers C. molecules D. isotopes

Biology & Microbiology

The two major stages of the cell cycle are

A) interphase and prophase. B) interphase and mitosis. C) mitosis and meiosis. D) mitosis and apoptosis.

Biology & Microbiology

Answer the question using the accompanying figure. Which number identifies a structure that is composed of

polysaccharides?

a. 1 b. 3 c. 6 d. 7 e. 9

Biology & Microbiology