EVERYDAY SCIENCE

Detailed explanation-1: -Algae are chlorophyll-bearing, simple, thalloid, autotrophic, and largely aquatic (both fresh water and marine) organisms. They can be found in various environments such as soil and wood in the presence of fungi (lichens). Algae come in a wide range of shapes and sizes.

Detailed explanation-2: -There are 3 classes of algae: Chlorophyceae, Rhodophyceae, Phaeophyceae.

Detailed explanation-3: -Algae are divided into three main classes according to the pigment present in them, viz. Chlorophyceae (Green algae), Rhodophyceae (Red algae) and Phaeophyceae (Brown Algae). 1.

Detailed explanation-4: -Algal groups. The photosynthetic pigments are used as a basis to classify algae into major groups, particularly green algae, red algae, brown algae, and golden algae. Blue-green algae (Cyanophyta) are not considered by others as algae but rather include them together with bacteria under Kingdom Monera.