B. A sunflower in a sunny meadow
Answer: Sexual reproduction
Explanation:
First, you should understand that mutation (an change in the base-pair sequence of the genetic material, DNA) is the original source of all genetic variation; as such whatsoever will alter the frequency of alleles, even if it is evolution, it relies on mutation.
In contrast, sexual reproduction does not change the frequency of alleles in the gene pool, rather it ensures constancy through the meiotic cell division process
It's called an erpidermis
<span>The original paragraph is: "Another familiar disease is malaria, which Elizabethans refer to as ague or fever. You might associate this with more tropical countries of the modern world but in marshy areas in sixteenth-century England, such as the Lincolnshire and Cambridgeshire Fens, the Norfolk Broads, and Romney Marsh in Kent, it kills thousands. No one suspects that it has anything to do with mosquitoes; rather people believe it is the corrupted air arising from the ling dank marsh (hence the term mal-aria). As a result, you will have no chance of getting proper treatment for the disease."
The correct answer is "it explains the Elizabethan misconceptions about the spread of malaria."
This is because people of Elizabethan England did not suspect mosquitoes from the Marsh (since mosquitoes thrive in wet or damp environments) are the main animal vectors for malaria. Also, since the etiologic agent of malaria is not yet identified at that time, the treatment is almost impossible to give.
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