Thalamus contributes in the fruit formation in

In which of the following plants, cotyledons form the first pair of leaves

Suitable environmental conditions for seed germination are

Suggest a possible explanation why the seeds in a pea pod are arranged in a row, whereas those in tomato are scattered in the juicy pulp.

While eating watermelons, all of us wish it was seedless. As a plant physiologist can you suggest any method by which this can be achieved.