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.
Answer: i think, Endochondral ossification occurs at two distinct sites in the vertebrate long bone – the primary (diaphyseal) and the secondary (epiphyseal) sites of ossification. Bone development initiates at the primary site. The secondary (epiphyseal) site is under independent control and is ossified later (Figure 1b).
<span>Mesosaurus evolved after Pangaea broke up but before South America and Africa split apart.</span>
