what is a thallus??

Answer 1

Interesting way of copy and paste from wikipedia without accrediting your source. When I first saw it I thought he was the original author and was quite the botanist. According to Britannica Concise Encyclopedia:

"Plant body of algae, fungi (see fungus), and similar simple, plantlike organisms. Composed of filaments or plates of cells, a thallus ranges in size from a single-celled structure to a complex treelike form. The photosynthetic and supportive cells tend to be organized linearly, but a thallus lacks such differentiated specialized structures as stem, leaves, and conducting tissue. Most thallus plants are currently classified as complex protists."

Answer 2

Thallus (tissue), an undifferentiated vegetative tissue (without specialization of function) of some non-mobile organisms, which were previously known as the thallophytes.
Any plant body that is not divided into true leaves, stems, and roots. It is often thin and flattened, as in the body of a seaweed, lichen, or liverwort, and the gametophyte generation (prothallus) of a fern.

Some flowering plants (angiosperms) that are adapted to an aquatic way of life may have a very simple plant body which is described as a thallus (for example, duckweed Lemna).

Thallus, from Latinized Greek θαλλος (thallos), meaning a green shoot or twig, is an undifferentiated vegetative tissue of some non-mobile organisms, which were previously known as the thallophytes.

An organism or structure resembling a thallus is called thalloid, thallodal, thalliform, thalline, or thallose.

Even though thalli do not have organized and distinct parts (leaves, roots, and stems) as do the vascular plants, they may have analogous structures that resemble their vascular "equivalents". The analogous structures have similar function or macroscopic structure, but different microscopic structure; for example, no thallus has vascular tissue.

Although a thallus is largely undifferentiated in terms of its anatomy, there can be visible differences and functional differences. A kelp, for example, may have its thallus divided into three regions. The parts of a kelp thallus include the holdfast (anchor), stipe (supports the blades) and the blades (for photosynthesis).

The thallus of fungus has been also called soma since late-20th century, but the alternative name is still uncommon. In seaweed, thallus is sometimes also called frond.

Answer 3

You know, I found so many websites describing the thallus and many pictures, too. Why don't you try and Google it? I am sure that your computer can do that.

Answer 4

The plant body generally not distinguish into stem,root and leaves.

Answer 5

a clump of plant tissue that can become any and all of the other plant parts for that species, they dont have flowers, or stems, or leaves, so they respire, circulate and reproduce as a unit