Crossword Puzzle What do you know about plants?Online version Crossword about plants. by Julián Sanz Mamolar 1 They have small flowers, but no fruit. 2 They have flowers and fruit. 3 They breathe and make the plant's food. 4 They are small plants which live on rocks, trees and the ground. 5 They have thick, underground stems and big leaves. 6 They are in the soil. 7 It supports the leaves. 3 2 7 5 1 6 4