Why are mosses non vascular plants?

Question

I HAVE LEARNED THIS BFORE BUT I CANT REMEMBER IF SOMEONE KNOWS THE ANSWER THEN PLEASE ANSWER!!!

Answer 1

1) Vascular plants are those that have conducting tissues namely XYLEM & PHLOEM to carry water and food respectively. These two tissues are collectively called VASCULAR BUNDLES.

2) Such vascular bundles are found in certain groups of plants such as i)Ferns and their relatives , Pteridophytes. ii) Conifers and their kins , Gymnosperms. iii) All flowering plants that we all are so familier with, Angiosperms.

3) The algae; Fungi and Mosses do not possess these vascular bundles or vascular tissues such as Xylem and Phloem ; so they are all NON VASCULAR PLANTS.

Answer 2

This is a very good question and not an easy one to answer. Short answer..... Yes, it is based on DNA classification. Long answer...... Realistically, some members of any clade or other classification can easily be defined as either "plants" or "non-plants" depending on how loosely you want to define the terms. Some algaes (brown, for instance) are very similar to the simplest of land plants (mosses, liverworts, hornworts).... as you mentioned. They even have what is called a "stipe", which isn't technically vascular tissue, but it does transport some products of photosynthesis. Classification is a tricky business and it is generally done by consensus. Not everything will fit neatly into a classification system and there will always be little issues like this. That is why they are constantly reclassifying things to get ever more specific.... hence the introductions of things like Domains and Clades fairly recently. Think of it this way.... Life doesn't need to be classified, but WE would like it to be!

Answer 3

Mosses lack the internal structure to transport water, which is why they are classified as non-vascular. Each individual plant just sucks up the water it needs- hence the individual plant's small size (moss as we see it is actually a whole lot of moss growing in close proximity to help hold one another up).

Answer 4

Mosses (and liverworts and hornworts) are nonvascular plants because they don't have vascular tissue. Vascular tissue is xylem (carries water and dissolved minerals) and phloem (carries food). Nonvascular plants pass these materials from cell to cell by diffusion.

Answer 5

because mosses lack an internal means for water transportation. They also do not produce seeds or flowers. They generally only reach a height of one to two centimeters, because they lack the woody tissue necessary for support on land.

Answer 6

easy.. because you touch yourself at night... no no... really it is because Mosses dont have the internal structure needed transport water up, becasuse of this they are [du-du-duuu]classified as non-vascular. Mosses simply sucks up the water it needs, like a sponge

-shamar [give me 10... 10 points!!]

Answer 7

because they don't have vascular tissues and they have this ting i forgot what it is called, but it gives them their water unlike vascular plants they get their water from the ground or rather ,their roots ...i think so if not its vice versa then .