Antibiotics are, initially, molecules naturally synthesized by microorganisms to fight against bacteria competing with their environment. This created a pressure of selection on the bacterial populations, leading to the appearance of resistant strains. In fact, when an antibiotic is used, only bacteria with defense systems against this molecule survive (and reproduce).
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The answer is B. 0.5 ounce
A standard drink should have around 14gram or 0.5 ounce or alcohol content. The volume of alcohol would be vary in different drinks because of the different alcohol concentration. Standard drink on different beverage would be 12 ounches of beer, 5 ouches of wine or 1.5 ounches of spirits.
Answer:
An ecologist must consider both of the speciation and extinction of an organism or when analyzing the diversity the life on earth because of the following reasons;
- It is a role of an ecologist
- It is part of their job
- This will tell the existence of the organism
- The organism’s life span on earth
- How it was existed and were extinct
Explanation:
