Question

What kind of additional evidence would indicate a coevolutionary relationship between squirrel traits and pinecones?

Answer 1

Yes, there are found coevolution between the squirell and the pine trait.

This can be explained by following experiment:

We have provided two conditions. In first conditions, squirrel are absent and in second conditions, the squire are present.

obervation:

* The number of seeds are found higher in cones, when squirell is present as compared to when squirell are absent.

*This indicates that cone shape remains statistically same in presence and absence of squirell. That's why this trait is not coevolved.

Discusion:

The number of seeds are found higher in cones, when squirell is present as compared to when squirell are absent. Because the seed coat is thickee and squirell can not eat many of the seeds. But the squirell can eat the other part. In this way, the seeds are transferree from one place to another by squirell. There are found high chances of germination of seeds. The plant spends less energy in producing seeds. Squirell get food by eating the other part. That's why the pine cone and the squirell are coevolved.

The large number of seeds in absence of squirell because the bird can disrupt the seed coat easily because of their beak. That's why they leodyce large seeds for enhancing survival rate.