Lower stem .......................................................
<span>Algae is a prime example of a pioneer species that would be found where a glacier has retreated, because the glacial retreat allows for its growth. This process is called succession and usually starts with lichen, an relative of algae. Lichen grows on bare rock which is left behind. Afterwards, acids produced in this environment cause dirt and soil to be created.</span>
They are single-celled organisms is false as plants are multicellular.
I think it is Facilitated diffusion
The environment wouldn’t get nutrients because bees and other pollinators would notice that the corn isn’t useful and/or is harmful to them.