EVERYDAY SCIENCE

Detailed explanation-1: -Plant-like protists are called algae. They include single-celled diatoms and multicellular seaweed. Like plants, algae contain chlorophyll and make food by photosynthesis. Types of algae include red and green algae, euglenids, and dinoflagellates.

Detailed explanation-2: -Ans-: Depending on the type of pigment possessed, plan-like protists are classified under six phyla: Green algae, Brown algae, Red algae, Diatoms, Dinoflagellates, and Euglenoids. Plant-like protists are eukaryotic, photosynthetic, unicellular, or multicellular, possess pyrenoids, gametangia, and a flagellum.

Detailed explanation-3: -The plants in the Thallophyta group are commonly called algae. These are usually found in wet or moist places. They do not have vascular tissue and are autotrophic in nature.

Detailed explanation-4: -Chlorophyceae – These are called green algae, due to the presence of pigments chlorophyll a and b. Phaeophyceae – Also called as brown algae, they are predominantly marine. Rhodophyceae – They are the red algae because of the presence of the red pigment, r-phycoerythrin.