________ are positively charged particles in the soil that attract anions

Fill in the blank(s) with correct word


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Biology & Microbiology

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Which of the following is NOT a potential reason anoxic methane-oxidizing Archaea have not also acquired the ability to reduce sulfate?

A) An individual electron acceptor such as sulfate is not always present where methane is. B) Minimizing the metabolic requirements of the archaeon's genome size provides flexibility to interact with other reducing bacteria, such as nitrate reducers. C) The archaeon-bacterium relationship yields more energy from methane oxidation/sulfate reduction when performed together than separately. D) The methane-oxidizing Archaea will not easily acquire this metabolic capability from the bacterial partner.

Biology & Microbiology

One possible fate for an exogenote is

A. degradation to nucleotides. B. independent replication and functioning. C. integration into the host chromosome. D. All of the choices are correct.

Biology & Microbiology

Artificial selection includes which of the following?

a. Breeding dogs for specific traits. b. Cross breeding plants to produce cultivars. c. Selectively cross breeding cats. d. All of the above. e. None of the above.

Biology & Microbiology

A random population distribution

A) is rare. B) is an advantage in avoiding predators. C) allows predators to hunt more effectively. D) occurs when resources are evenly spaced. E) is found only in plants.

Biology & Microbiology