Answer The first practical realisation of the metric system came in 1799, during the French Revolution, when the existing system of measures
Explanation:
The electron transport of respiration occurs in cell structures called mitochondria.
Answer: The correct answer is-
B. by mutating their DNA in response to environmental conditions to gain beneficial traits.
Antibiotic resistance in bacteria means the bacteria is not susceptible to the antibiotic that is the effectiveness of antibiotic against the bacteria is eliminated or reduced.
It occurs when bacteria undergoes mutation that is alteration in the genetic material ( for instance, in one mechanism of resistance, mutation changes the protein that was earlier target for the antibiotic).
Therefore, by mutating the DNA in response to environmental condition ( such as exposure to antibiotic in this condition), bacteria gains beneficial characters and become resistant.
Thus, option B) is the right answer.
Energy, growth, evolutionary and ecological describe different biological life cycle. Life cycle involves all those living organisms in the earth. Life cycle involves energy that every living organisms need, growth that every living organism undergo, evolution and ecological.
Answer: None of the above. The genotype bb produces a blue phenotype.
