Evolutionary history of an organism is known as

The following chart represents the evolutionary history of vertebrates through geological periods. What are the organisms $P$ and $Q$?

Select the option that shows the correct sequence of plant evolution.
$(I)$ Chlorophyte ancestors
$(II)$ Rhynia-type plants
$(III)$ Psilophyton
$(IV)$ Tracheophyte ancestors

Identify the given figure and select the correct option.

The last major evolutionary advancement among the vascular plants was the emergence of flowering plants (angiosperms) about

Fish with stout and strong fins could move on land and go back to water. This was about: (in $mya$)