The correct answer is that variable number repeats are used in DNA tests; they have hundreds of possible lengths. Eye color is determined by variations in a person's genes. Most of the genes associated with eye color are involved in the production, transport, or storage of a pigment called, melanin. Eye color is directly related to the amount and quality of melanin in the front layers of the iris.
Answer:
The correct answer is competitive exclusion.
Explanation:
According to the principle of competitive exclusion, the two species, which compete for the exact identical resources cannot coexist stably. Of these two competitors, one will always exhibit a slight advantage over the other, which results in the extinction of the second competitor in the prolonged time.
It can also result in an evolutionary shift of the inferior competitor towards a distinct ecological niche. As an outcome, the competing associated species usually evolve differentiating features in the regions where they both coexist. This helps in mate identification, thus, sustaining the superiority of each species in exploiting somewhat distinct ecological niches.
Chemcial energy is the answer
