Mycobacterium tuberculosis is able to persist and be spread in aerosols due to its ability to produce endospores.
Answer the following statement true (T) or false (F)
False
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The comparison between Parazoa and Eumetazoa is best described by which of the following statements?
A. Parazoa have only one kind of cell whereas Eumetazoa have many kinds. B. The various kinds of cells of Parazoa do not form permanent associations into tissues or organs whereas Eumetazoa possess true, stable tissues. C. Parazoans are only haploid, whereas eumetazoans are diploid with haploid sex cells. D. Parazoans invert during their development whereas eumetazoans do not. E. All of the choices provided are correct.
Acetic acid, chemical formula CH3COOH, a component of vinegar, has multiple production pathways. Which of these equations shows anaerobic fermentation?
a. C2H5OH + O2 ? CH3COOH + H2O b. 2 C4H10 + 5 O2 ? 4 CH3COOH + 2 H2O c. 2 CO2 + 4 H2 ? CH3COOH + 2 H2O d. 2 CH3CHO + O2 ? 2 CH3COOH
What information is used by the ribosome to assemble the amino acid sequence of a polypeptide?
A) Base sequence of mRNA B) Base sequence of DNA C) Base sequence of tRNA D) Base sequence of the chromosome
Figure 22.2
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Questions refer to the above figure.
In the accompanying figure, which of the following represents a multicellular, haploid reproductive stage?
A. 1 B. 2 C. 3 D. 4 E. 5