Mutations are changes that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.
They increase the genetic variation within a species because they can create entirely new alleles in a population, random mating, random fertilization, and recombination between homologous chromosomes during meiosis which reshuffles alleles within an organism's offspring.
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Answer:
Sympathetic nervous system
Explanation:
The sympathetic nervous system of the autonomic division prepares the body for stress or emergency conditions by generating the “fight-or-flight” responses. The sympathetic nervous system triggers the release of stress hormones from the adrenal medulla to generate the set of physiological responses.
There is dilation of the pupil, and an increased rate of heartbeat and increased blood pressure. Other responses include dilation of airways and dilation of blood vessels that supply blood to skeletal muscles, heart muscles, liver, etc. Under the given emergency condition, the sympathetic nervous system of Meghan was activated to generate the fight or flight response.
Crustacea(ns) form a very large group of arthropods.
The contribution to the development of the microscope that was made by someone other than Louis Pasteur was the discovery of the light microscope by Robert Hooke.
<h3>What is microcopy?</h3>
The term microscope refers to an equipment that could be used to study cells that can not be seen with the optical eyes. The range of the structures that could be seen by the microscope are quite infinitesimal hence the microscope was instrumental to the advancement of the cell theory.
The contribution to the development of the microscope that was made by someone other than Louis Pasteur was the discovery of the light microscope by Robert Hooke.
Learn more about microscope:brainly.com/question/18661784
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