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

1. Mycoplasmas are named for the large quantities of mycolic acid in their cell walls.

2. Most of the methane produced by methanogens is oxidized by other types of bacteria before it affects Earth's climate.

3. Bacteria in the genus Cytophaga are capable of digesting a wide range of complex carbohydrates and are important for degrading raw sewage.


1. FALSE

2. TRUE

3. TRUE

Biology & Microbiology

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Echinoderms are unique in their (choose all that apply)

A. five-fold symmetry. B. skeletons made of interlocking plates of protein. C. water vascular system. D. Skeletons made of interlocking plates of calcite E. Filter feeding

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In which cell division do the DNA's of mom and dad match up?

A. Meisosis B. Mitosis

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Which type of mutation can cause a change in the coding sequence?

a. silent mutation b. insertion c. deletion d. nonsense mutation e. All of the above

Biology & Microbiology

Many marine mollusks have distinctive larvae that have their bodies encircled by a row of cilia. These larvae are called

A. polyps. B. zoecia. C. miracidia. D. trochophores. E. planulae.

Biology & Microbiology