Which two organisms should be used for quality control purposes to determine the validity of the indole reagent?

a. E. meningoseptica and Empedobacter brevis
b. Chryseobacterium spp. and E. meningo-septica
c. E. meningoseptica and Sphingobacterium multivorum
d. Agrobacterium group and Sphingobacte-rium spiritivorum


C
The only two organisms that are both positive and negative for indole, respectively, are E. me-ningoseptica and S. multivorum.

Biology & Microbiology

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Which of the following reactions is classified as a heterofermentation?

A) hexose 2 lactate + 2 H+ B) HCOOH H2 + CO2 C) glucose lactate + ethanol + CO2 + H+ D) fructose 3 acetate + 3 H+

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Which statement is true regarding typical plant development?

a. Growing tips and zones are present throughout a plant's life, and final plant form is not influenced by the environment. b. Plant bodies have a fixed final size, and final plant form is influenced by the environment. c. Final plant form is not influenced by the environment, and growing tips and zones are present throughout a plant's life. d. Growing tips and zones are present throughout a plant's life, and plant bodies do not have a fixed final size. e. Plant bodies do not have a fixed final size, and final plant form is not influenced by the environment.

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Most conifers are ____

a. nonvascular b. dikaryotic c. deciduous d. seedless e. evergreen

Biology & Microbiology

Which of the following bacterial species is classified as high G+C gram positive?

A. Corynebacterium diphtheriae B. Staphylococcus aureus C. Bacillus anthracis D. Streptococcus pneumonia

Biology & Microbiology