A Reptile-tetrapod animals from the class reptilian comprising todays turtles, crocodilians, snakes etc...

 A gymnosperm-a plant that has seeds unprotected by an ovary or fruit

 Population- a particular section, group, or type of people or animals living in an area or country

 A wind-dispersed seed- seeds from plants like dandelions, swan plants and cotton wood trees are light and have feathery bristles.