Biologija Doklad Na Temu Vysshie Rastenija 7 Klass Guide

Then came the pines and firs. They didn't need water to reproduce anymore; they invented seeds . These seeds were like little spaceships, carrying life across dry deserts and frozen mountains.

These were the first to settle. They were small and stayed near the water because they didn't have true roots or "plumbing" (vascular tissue). They were like the scouts of the plant kingdom. biologija doklad na temu vysshie rastenija 7 klass

Mark took a deep breath and looked at his own houseplant, a small fern on his desk. He realized that inside that plant, there was a complex factory. acted like anchors and straws. Stems were the highways, moving minerals up and sugar down. Then came the pines and firs