A student is observing different structures of a seed plant during a lab activity. She has identified tiny structures that look like powder. Which structures did the student most likely identify?

The structures that look like powder that the student identified when studying a seed plant are most likely pollen grains.

Explanation:

Angiosperms is the name given to plants with seeds, whose characteristic is to reproduce with seeds, in addition to having flowers that have pollen grains.

The pollen is a very small particle - similar to dust - that seed plants present and that corresponds to the male gametophyte of the plant, the haploid phase of the reproductive cycle of them.