Generational change in green algae?

"Hello! First task," our exercise group leader greets us every Tuesday, visibly excited. But opinions differ on this task "The figure shows schematically four (AD) plant development cycles a) In which developmental cycle do gametes arise through meiosis and in which through mitosis? b) In which developmental cycle is a heteromorphic change of gene generation…

What factors cause a plant to build up/need root pressure?

Hehe, yep, my third botany exam is just around the corner. And that's even though I didn't even take the exam—because I wasn't familiar with the exam regulations—and didn't even show up for it. Well, complaining doesn't help, we just have to get the thing into our heads quickly. However, the ever-popular multiple choice questions…