<h3><u>Answer;</u></h3>
B. When an antibiotic is used, bacteria that have a natural variation for resistance to the antibiotic have a greater chance of survival.
<h3><u>Explanation</u>;</h3>
Antibiotic resistance is a consequence of evolution via natural selection.
The antibiotic action is an example of environmental pressure to bacteria, therefore; those bacteria which have a mutation allowing them to survive will live on to reproduce.
They will then pass this trait to their offspring, which will be a fully resistant generation.
Binary Fission <span> is a form of asexual reproduction.</span>
Answer:
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The presence of the receptor in a cell for a particular hormone decide whether the cell is able to respond to a hormone. Cells which do not have a receptor are not directly influenced by hormone.