Do all plants start from seeds?
Do all plants start from seeds? Not every plant grows from a seed. Some plants, like ferns and mosses, grow from spores. Other plants use asexual vegetative reproduction and grow new plants from rhizomes or tubers. We can also use techniques like grafting or take cuttings to make new plants. Are plants or seeds first? Spores contain a single cell, whereas a seed contains a multicellular, fertilised embryo that is protected from drying out by a tough coat. These extra features took another 150 million years to evolve, whereupon the first seed-bearing plants emerged. So plants came first, by a...