What proteins are involved with wrapping up DNA?
What will be an ideal response?
Answer: histones
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Answer the following statements true (T) or false (F)
1. No microorganisms are able to live in the stomach because of the extremely low pH of the stomach contents. 2. Microbial communities known as biofilms are interesting, but they have no medical significance. 3. Microorganisms are unable to live in the colon owing to the lack of oxygen there. 4. Some of the bacteria used in bioremediation are naturally occurring, but others have been genetically engineered. 5. Many of the members of our indigenous microflora have the potential to cause disease.
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.
Which yellow-pigmented organism exhibits gliding motility that grows best at 35°C and in conditions with increased carbon dioxide (CO2) but cannot grow in ambient air?
a. Actinobacillus b. Capnocytophaga c. Cardiobacterium d. Kingella
In its use in conservation efforts, lichens are classified as an example of a(n) ____
a. biological magnified species b. endangered species c. biodiverse species d. indicator species e. exotic species