Question

СРОЧНО!!!!!!!!!!!!!!!!Ствол папоротника и сосны!!!

Answer 1

Stvols of Fern and Pine Trees

The stvol is the Russian word for "trunk" or "stem." Let's discuss the stvols of fern and pine trees.

Fern Stvols: Ferns are non-flowering plants that reproduce through spores. They do not have true wood or bark like trees. Instead, ferns have underground stems called rhizomes, which serve as storage organs and help the plant spread. The rhizomes of ferns are typically short and creeping, producing fronds above the ground. These fronds are the leafy structures that we commonly associate with ferns. The fronds of ferns are supported by fibrous stipes, which are similar to stems but do not have the same woody structure as tree trunks.

Pine Tree Stvols: Pine trees, on the other hand, are true trees with well-developed stvols or trunks. The stvol of a pine tree is the main vertical structure that supports the branches, leaves, and reproductive structures. Pine tree stvols are composed of several layers, including the outer bark, inner bark (phloem), cambium layer, sapwood (xylem), and heartwood. The outer bark protects the tree from external factors, while the inner bark transports nutrients. The cambium layer is responsible for the growth of new cells, and the sapwood and heartwood provide structural support and transport water and nutrients throughout the tree.