What are cyanobacteria?
By: Jose Juan Gutierrez
Cyanobacteria, also known as blue-green algae, are ancient unicellular photosynthetic organisms. Cyanobacteria are one of the oldest fossils on Earth, dating back to about 2.5 million years, making them among the oldest organisms in the fossil record. They are found in the most diverse...
Understanding what diatoms are
By: Jose Juan Gutierrez
Diatoms are microscopic single-celled algae of the class Bacilliariophyta, and are one of the most common types of algae. Most diatoms are single-celled, but others can form colonies of algae. Diatoms secrete silica, the same material that sand is made of, that helps them build...
How autotrophs differ from heterotrophs in obtaining energy
By: Jose Juan Gutierrez
All living organisms that inhabit the planet may be divided into two distinct groups based on their feeding habits; autotrophs and heterotrophs. Autotrophs are those organisms that use inorganic molecules to manufacture the organic material they need to survive; these organisms include plants, algae and...
Extremophiles: Living organisms in extreme conditions
By: Jose Juan Gutierrez
Extremophiles, from the Greek extremus “extreme” and philia “loving,” are organisms that thrive under conditions that are considered detrimental for most known organisms. These organisms can live in habitats where no other organisms can, and are capable of tolerating a wide range...
By: Virginia Gaces
Multicellular algae are groups of mostly aquatic plants that derive their food from the manufacture of chlorophyll during photosynthesis. They are composed of several cells and reproduce somewhat differently from other types of plant. They do not have roots, leaves or stems just like ordinary...
By: Stefani A
Algae comes in many varieties, so many that most might not even be aware of whether they are looking at algae or not. Algae can be seen floating on the surface of a stagnant lake. It can be found riding the currents of the ocean...
Seven phyla of algae
By: Jose Juan Gutierrez
Algae are a diverse group of simple organisms that live in aquatic environments, including the ocean, freshwater, ponds and moist land. Algae contain chlorophyll and are able to go through the process of photosynthesis, like plants; however, they lack the organs and kinds of cells...
By: Jose Juan Gutierrez
Algae are a diverse group of photosynthetic organisms, ranging from unicellular to multicellular eukaryotic organizations. Algae are classified into the kingdom protista, lacking cellular differentiation into tissues. All algae possess the green pigment chlorophyll a, although other pigments can be present obscuring the greenish color...
By: Lovelin Paul
Algae are simple yet large and diverse groups of autotrophic organisms that grow in water or in moist areas. They act as producers of food and oxygen. Algae may be unicellular or multicellular based on their type, and they reproduce either sexually or asexually. The...
How algae differs from other plants
By: Menaka Ratnayake
By the looks of them, many algae and plants may appear the same, at least superficially. However, they can be structurally and functionally miles apart. Due to their differences, algae and plants are classified into two different kingdoms known as "protista" and "plant," respectively...

 

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