
Algae - Encyclopedia.com
Jun 11, 2018 · Algae Algae (singular: alga) are photosynthetic, eukaryotic organisms that do not develop multicellular sex organs. Algae can be unicellular, or they may be large, multicellular organisms. …
Green Algae | Encyclopedia.com
May 11, 2018 · green algae Large group of marine and freshwater algae (phylum Chlorophyta). They are distinct from other algae by virtue of possessing cup-shaped chloroplasts that contain chlorophyll …
Cyanobacteria - Encyclopedia.com
Jun 27, 2018 · Cyanobacteria Cyanobacteria (blue-green algae [1]) are microorganisms that structurally resemble bacteria (they lack a nucleus and organelles ). However, unlike other bacteria, …
Evolution of Plants - Encyclopedia.com
May 18, 2018 · Evolution of Plants Plants, descended from aquatic green algal ancestors, first appeared on land more than 450 million years ago during or prior to the Ordovician period. This event …
Yellow-green Algae | Encyclopedia.com
May 11, 2018 · Xanthophyta (green algae) A division of algae in which the chloroplasts are yellow-green and which form motile cells with 1 long, forward-directed tinsel flagellum and 1 much shorter, …
Photosynthesis - Encyclopedia.com
Jun 27, 2018 · Photosynthesis Photosynthesis is the biological conversion of light energy into chemical energy. This occurs in green plants, algae, and photosynthetic bacteria .
Diatoms - Encyclopedia.com
May 23, 2018 · Diatoms Algae are a very diverse group of simple, nucleated, plant-like aquatic organisms that are primary producers. Primary producers are able to utilize photosynthesis to create …
Pyrrophyta - Encyclopedia.com
Jun 27, 2018 · Cryptomonads for instance, are considered red-brownish algae of Cryptomonadida Order by botanists, and protozoans of Cryptophycea Class by zoologists. This controversy is due to the …
Euglenophyta - Encyclopedia.com
May 29, 2018 · Euglenophyta A division of typically unicellular protists, sometimes regarded as algae, sometimes as protozoa (class Phytomastigophora). They are characterized by the possession of a …
Rhodophyta - Encyclopedia.com
Jun 27, 2018 · Rhodophyta (red algae) A group of Eukarya which are mostly red in colour; no flagellated cells are formed, and the storage product is a type of starch known as floridean starch. Sexual …