This this the answer right here
<span>The answer to the question is vascular tissue and seeds. The developmental adjustments that helped plants succeed and spread ashore were vascular tissue and seeds. They help to scatter the seeds to a more remote place which helps plants to develop somewhere else.</span>
I would say reasonable evidence that was 110% true. Otherwise you are putting possiblly false information into the cell theory :)
These are few examples of ecosystem services. These are conditions or processes of natural systems that directly or indirectly have a benefit to humans or enhance their social welfare. They include purification of water and air, maintenance of biodiversity, soil and vegetation generation and renewal, seed dispersal, greenhouse gas mitigation among other services.