Answer:
Reversible process
Explanation:
Reversible process is the process in which the reactants and the products both are used. They both are produced also. We can consume either the product or the reactant. So, if we need a resource to be produced repeatedly, we should put it in a reversible process.
B. Organisms are selectively bred to create new species.
C. New species are crossed with each other to form many different organisms.
D. Different genetic variations in organisms are selected in different habitats.
Organisms pass on acquired traits to evolve into more advanced life forms. So correct option is A.
Charles Darwin in gave the theory of evolution in 1809-1882 that was based on natural selection which is survival of the fittest.
Based on Darwin's theory of evolution the best statement which explains that how it happen is because of the environment opted the one which is fittest of all and the one which is not will not survive or die.
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Since tongue rolling ability is determined by a single gene with two separate alleles—the dominant allele, which codes for tongue rolling ability, and the recessive allele, which codes for tongue rolling incapacity—tongue rolling ability is a discontinuous variation.
The hereditary characteristic known as tongue rolling ability controls whether or not a person can roll their tongue into a tube shape. This characteristic is frequently used as an illustration of a straightforward hereditary trait with discontinuous variation since there are only two possible outcomes: either a person rolls their tongue or they do not.
Either a person has the recessive allele, which prevents them from rolling their tongue, or they have the dominant allele, which allows them to roll their tongue. There is no intermediate or in-between trait, and the presence or absence of the dominant allele is a distinct, plainly observable phenotype.
Therefore, the capacity for tongue rolling is an illustration of a discontinuous variation.
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Molecular clocks use rates of mutation to measure evolutionary time. Mutations add up at a fairly constant rate in the DNA of species that evolved from a common ancestor. The more mutations that happened in each lineage, the greater is the differences between these lineages.
Diseases are believed to continue in human populations originally because of a balance among mutation, genetic drift, and natural selection, with alleles that provide to infection preceded by mutation, directed in part by stochastic genetic drift, but eventually excluded from the population by cleaning selection.
Those most susceptible are more likely to get complications and die or be less fit. If the sensitivity were genetic fewer survivors would presumably have some descendants. Those with better resistance would rise in proportion to those with comparatively lacking immunity all other things being alike. That change in the ratio of genetic types would be evolution by natural selection. Modern medicine involves that a bit by usually curing most diseases.