Question

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Can U explain the structure of a multicellular , large algae with the help of a diagram . Pls say me the correct answer friends .☺️​

Answer 1

Answer:

Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms.

All species of animals, land plants and most fungi are multicellular, as are many algae, whereas a few organisms are partially uni- and partially multicellular, like slime molds and social amoebae such as the genus Dictyostelium.

Multicellular organisms arise in various ways, for example by cell division or by aggregation of many single cells.Colonial organisms are the result of many identical individuals joining together to form a colony. However, it can often be hard to separate colonial protists from true multicellular organisms, because the two concepts are not distinct; colonial protists have been dubbed "pluricellular" rather than "multicellular".

Explanation:

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Answer 2

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The term algae (Latin — seaweeds) was first introduced by Linnaeus in 1753, meaning the Hepaticeae. The algae comprise of a large heterogeneous assemblage of plants which are diverse in habitat, size, organisation, physiology, biochemistry, and reproduction.

It is an important group of Thallophyta (Gr. Thallos — a sprout; phyton — a plant), the primitive and simplest division of the plant kingdom. The orderly system­atic study of algae is called Phycology (Gr.phycos — seaweeds; logos — study or discourse).The algae are chlorophyll-containing primi­tive plants, both prokaryotic and eukaryotic, with wide range of thaifi starting from unicellular to multicellular organisations. The plant body may be unicellular to large robust multicellular structure.

The multicellular complex thalli lack vascu­lar tissue and also show little differentiation of tissues.

The sex organs are generally unicellular but, when multicellular, all cells are fertile and in most cases the entire structure does not have any protection jacket.

The zygote undergoes further development either by mitosis or meiosis, but not through embryo formation.