~Gymnosperms have developed over the course of its evolution, structures that solved the main limitations present in the Pteridophytes in relation to sexual reproduction, and in the <span>terrestrial environment.
</span>~The organisms that have adapted fully to the terrestrial environment feature adaptations in body to retain water, thus avoiding <span>dehydration.
~ @</span> Pteridophytes:Vascular tissue: water and minerals & <span>organic material. </span>Vascular tissue: increasing efficiency in transport of water & mineral salts with increased plant growth.Dependence on water for fertilization with anterozoides <span>furniture.</span>
The substance that must come through the cell membrane for the cell to live is nutrients. Cells would die if they did not get nutrients. Nutrients are what keeps the cell running.