Replication is when you copy something, and repetition is when you keep doing it over and over again. i hope this helps :-D
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Answer:
Photoperiod signifies towards the time that an animal or a plant gets exposed to light in a twenty-four-hour duration. Different types of plants need different durations of light exposure to follow their respective life cycles.
On the basis of getting exposed to light differently, the plants are differentiated into short-day plants, long-day plants, day-neutral plants, and intermediate-day plants. The day-neutral plants will undergo flowering at any length of the day, given that there is the availability of minimum amount of light, which is essential for usual growth. For example, beans, tropical plants, cotton, and others.
On the other hand, the intermediate-day plants will not flower if the days are too long or too short, like different varieties of grasses.
Really, this is a simple and easy question.
To make it easier to understand, consider a population of moths. These moths are originally white. The trees in the area are a color that allow the moths to camouflage to escape predation.
There is a particular woodland that these moths most reside in, but as industrialization increases in the area, the emission of smog increases, which darkens the trees, this changing the moth's habitat. Due to this environmental change, some moths become darker in color due to the smog emissions on the tree bark. Some mlths, however, are still bright in color. Due to this environmental change, the bright-colored moths are not able to survive and reproduce, and their population eventually dies out.
This is one of the rather basic examples of natural selection.
To answer your question, therefore, the population would eventually die out, due to those organisms not having the compatible adaption for their environment, which line up with the natural selection principle.
Hope you find this helpful.