What is the question or paper? there isn’t really a question here if there is nothing to look at lol
Genetic variation in a population allows for phenotypic variation, meaning that different traits exist in the same population. When the environment changes, the members of the population are tested by natural selection with regards to how well adapted their specific traits are to the new environment. If the traits they have do not suit their environment, this results in reduced survival and fitness, leading to less of that trait in the population. However, if the traits they have are adapted to the environment, they become naturally selected for with better survivability and fitness (leading to a higher frequency of that trait in the population). Thus, evolution has occurred.
Saturated?!
Hope it helps!:))))
Answer:
The correct answer is option A. "Advantageous alleles do not arise on demand".
Explanation:
One of the most common misconceptions of how evolution occurs is that an organism is able to develop advantageous traits on demand. Believing that, for instance, a giraffe was able to develop a large neck because it wanted to reach large trees. This is wrong, evolution is the product of nature selecting random mutations that are advantageous to a species.