NEET BIOLOGY

Detailed explanation-1: -Algae also lack true roots, stems, and leaves-features they share with the avascular lower plants (e.g., mosses, liverworts, and hornworts). Additionally, the algae as treated in this definition exclude the prokaryotic (nucleus-lacking) blue-green algae (cyanobacteria).

Detailed explanation-2: -The main reason is that they contain chloroplasts and produce food through photosynthesis. However, they lack many other structures of true plants. For example, algae do n ot have roots, stems, or leaves. Some algae also differ from plants in being motile.

Detailed explanation-3: -Algae are simple, aquatic, plant-like organisms that do not have true roots, stems and leaves. Many are single-celled so can only be seen using a microscope, while others grow in filaments or mats that are quite conspicuous. Algae have chlorophyll and can make their own food through the process of photosynthesis.

Detailed explanation-4: -The action of these parts are done by body itself like function of leave in plant is to perform food, algae has chlorophyll and prepare its food by whole body. Most of algae are free floating aquatic so doesnt require roots and they have irregular body shape so there is no need for stem for support.

Detailed explanation-5: -Algae are sometimes considered as protists with chloroplasts. Some algae, the so-called blue-green cyanobacteria, belong to the kingdom Prokaryotes but most of them, that is, the rest, belong to the kingdom Chromista.