The production of antibiotics by microbes evolved so that
A. diseases could be cured.
B. bacteria and viruses could be eliminated.
C. the growth of other organisms sharing their habitat was inhibited, thus giving them a selective advantage.
D. certain environments can be protected from pathogenic bacteria.
Answer: C
You might also like to view...
An important functional role of the endocrine system is to ____
a. respond rapidly to changes in the body b. control gene action c. inhibit nervous system action on muscles and glands d. regulate digestion e. fight infection
Which of the following represents an activity within a population?
a. a fox consuming a rabbit b. the absorption of nitrogen by bacteria and converting it to a form useful to plants c. a peacock spreading and shaking his feathers to attract a female d. moss growing on the north side of a large pine tree e. a virus causing rabies in a dog
Which of the following represents microbial control by osmotic pressure?
A. Placing fruit slices on a drying rack B. The crew of the Mayflower using salted meats throughout their voyage to the New World C. Pickling cucumbers and other vegetables for long-term storage D. Canning tomatoes after a summer growing season to use throughout the winter
Which molecule is responsible for separating double-stranded DNA into single strands?
A. DNA primase B. DNA ligase C. DNA helicase D. single-stranded binding proteins E. topoisomerase