Question

Сходство и различие между мхами плуанами и хвощами​

Answer 1

Ответ:

сходства:

произрастание на влажной почве, тесная зависимость полового процесса от водной среды;

наличие хорошо развитых стеблей и листьев, появление корней;

наличие развитых механической и проводящей тканей, трахеид, сосудисто-волокнистых пучков, устьиц;

чередование поколений, преобладание спорофита (2n) над гаметофитом (1n).

различия:

папоротники и плауны имеют обоеполый гаметофит, хвощи - однополый;

хвощи имеют членистое корневище;

заросток плауна сильно редуцирован.

Answer 2

Similarities between mosses and horsetails

Mosses and horsetails are both types of non-vascular plants, meaning they lack specialized tissues for transporting water and nutrients. Here are some similarities between mosses and horsetails:

1. Non-vascular plants: Both mosses and horsetails belong to the group of non-vascular plants, which also includes liverworts and hornworts. Non-vascular plants are characterized by their simple structure and lack of specialized tissues for conducting water and nutrients.

2. Small size: Mosses and horsetails are generally small in size compared to other plants. They typically grow close to the ground and have a low, creeping or erect habit.

3. Reproduction: Both mosses and horsetails reproduce through spores. They produce specialized structures called sporangia that contain spores. These spores are released into the environment and can germinate to form new plants.

4. Moisture-dependent: Mosses and horsetails require a moist environment to survive and reproduce. They are commonly found in damp habitats such as forests, wetlands, and along streams or rivers.

Differences between mosses and horsetails

While mosses and horsetails share some similarities, there are also several differences between them. Here are some key differences:

1. Leaf structure: Mosses have small, leaf-like structures called phyllids that are arranged in a spiral pattern around the stem. These phyllids are usually only one cell thick and lack specialized tissues. In contrast, horsetails have needle-like leaves that are arranged in whorls around the stem. These leaves are usually hollow and contain silica, giving them a rough texture.

2. Stem structure: Mosses have a simple, unbranched stem that lacks true roots. The stem of a moss is usually covered with rhizoids, which are hair-like structures that help anchor the plant to the substrate and absorb water. Horsetails, on the other hand, have jointed stems that are hollow and contain silica. The stems of horsetails are usually branched and have distinct nodes and internodes.

3. Habitat preference: Mosses are more versatile in terms of habitat preference and can be found in a wide range of environments, including forests, tundra, and deserts. They can tolerate varying levels of moisture and sunlight. Horsetails, on the other hand, are typically found in wet or marshy areas, such as swamps, bogs, and along the edges of ponds or lakes.

4. Ecological role: Mosses play an important role in ecosystem functioning. They help retain moisture in the soil, prevent erosion, and provide habitat and food for various organisms. Horsetails, on the other hand, are less ecologically significant and are not as commonly found in diverse ecosystems.

Please note that the information provided above is based on search results and may not cover all possible similarities and differences between mosses and horsetails.