Describe how oral antibiotics can result in the harmful alterations in the microbiota.
What will be an ideal response?
Answer: Oral antibiotic can result in the harmful alterations in the microbiota because it can kill both the good and the bad bacteria. and the bad bacteria can mulitply.
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Actin filaments have polarity. This means that the two ends can be identified due to structural differences. The plus end is the end to which subunits are added more rapidly, or the end of polymerization
Which of the following would enable you to identify the plus end of actin filaments? A) Add radiolabeled actin subunits to a mixture of actin filaments in which conditions are favorable for polymerization. B) Add radiolabeled actin subunits to a mixture of actin filaments in which conditions favor depolymerization. C) Determine the ionic charge of the ends of the actin filaments.
A(n) ____ environment is ideal for plant cells, while a(n) ____ environment is best for animal cells
a. isotonic; hypotonic b. hypotonic; isotonic c. hypotonic; hypertonic d. hypertonic; isotonic e. isotonic; isotonic
A species that plays a critical role in maintaining the structure of an ecological community and helps to determine the types and numbers of various other species in the community is known as
A. a predator. B. a keystone species. C. the primary species. D. the dominant species. E. the alpha species.
Four of the five answers listed below are bases used to construct nucleic acids. Select the exception
a. cytosine b. adenine c. thymine d. guanine e. phenylalanine