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Answer:</h2>
Mutations lead to new genes, which may have an advantage over the old forms, causing the species to evolve.
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Explanation:</h2>
Mutation assumes a significant job in evolution. A definitive wellspring of all hereditary variety is a mutation. It is significant as the initial step of development since it makes another DNA succession for specific quality, making another allele.
Recombination additionally can make another DNA succession (another allele) for a particular quality through intragenic recombination. Mutation going about as a developmental power independent from anyone else can possibly cause huge changes in allele frequencies over exceptionally significant stretches of time.
The answer would be: <span>addison's disease
Cortisol is produced by the adrenal glands that located above the kidney. </span>Addison's disease appears w<span>hen the adrenal glands produce less cortisol than needed. The cause might be autoimmune cells attacking the glands or infection of tuberculosis. Cortisol deficiency could be fatal in some cases, called adrenal crisis.
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Answer:
The correct answer is A from an area of higher concentration to an area of lower concentration
Explanation:
Diffusion is one of the most important membrane transport process which helps in the transport of small molecules and gases across the plasma membrane from higher concentration region to the region of low concentration until the concentration of the transported molecule becomes equal at both sides.
As the molecule move along the concentration gradient no external energy is needed to carry out simple diffusion.
