Please select the three major mechanisms by which antimicrobial resistance genes are shared and spread among microbial populations.

> Conjugation
> Spread from human hosts to bacteria
> Transduction
> Transformation
> Transcription
> Taking antibiotics


> Conjugation
> Transduction
> Transformation

Biology & Microbiology

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Four of the five chemicals listed below are

bases used to construct nucleic acids. Select the EXCEPTION.

a. adenine b. cytosine c. thymine d. guanine e. cysteine

Biology & Microbiology

Heterotrophs that obtain energy and carbon by feeding on both animal and plant materials are called ____

a. detritivores b. herbivores c. carnivores d. omnivores e. decomposers

Biology & Microbiology

Succession leads to the establishment of a(n)

A) community that consists of only one or two dominant species. B) mature community. C) ecosystem. D) community that has a limited number of natural resources. E) community that is inefficient in terms of its use of energy and nutrients.

Biology & Microbiology

? Figure 9.8 ? The following questions refer to the codon table above. ? ? The first amino acid of a new polypeptide chain is _____________.

A. alanine B. cysteine C. variable D. phenylalanine E. methionine

Biology & Microbiology