
Algae | Definition, Characteristics, Classification, Examples, & Facts ...
Mar 13, 2025 · algae, members of a group of predominantly aquatic photosynthetic organisms of the kingdom Protista. Algae have many types of life cycles, and they range in size from …
Algae - Photosynthesis, Diversity, Ecology | Britannica
Mar 13, 2025 · Algae are almost ubiquitous throughout the world and can be categorized ecologically by their habitats. Planktonic algae are microscopic and grow suspended in the …
Algae - Photosynthesis, Diversity, Nutrition | Britannica
Mar 13, 2025 · Algae - Photosynthesis, Diversity, Nutrition: Algal cells are eukaryotic and contain three types of double-membrane-bound organelles: the nucleus, the chloroplast, and the …
How Phytoplankton Function & Survive in the Ocean | Britannica
Learn about phytoplankton, plantlike types of microscopic algae that live suspended in bodies of water such as oceans. The term phytoplankton comes from the Greek words phyton (“plant”) …
Microbiology | Definition, History, & Microorganisms | Britannica
Feb 4, 2025 · microbiology, study of microorganisms, or microbes, a diverse group of generally minute simple life-forms that include bacteria, archaea, algae, fungi, protozoa, and viruses. …
algae - Kids | Britannica Kids | Homework Help
Algae even grow on animals such as turtles and polar bears. Algae can be green, blue, red, or brown. They vary greatly in size. Some species are so small that they can only be seen …
Microbiology - Bacteria, Viruses, Fungi | Britannica
Feb 4, 2025 · Algae. The cells of eukaryotic microbes are similar to plant and animal cells in that their DNA is enclosed within a nuclear membrane, forming the nucleus. Eukaryotic …
Meet the Microbes: 5 Tiny Protozoans and Algae - Encyclopedia …
These tiny creatures are commonly studied in school and can often be seen swimming in a drop of water viewed through a microscope. The following is a list of some of the common …
Nostoc | blue-green algae, filamentous & unicellular | Britannica
Nostoc, genus of blue-green algae with cells arranged in beadlike chains that are grouped together in a gelatinous mass. Ranging from microscopic to walnut-sized, masses of Nostoc …
Diatom | Description, Characteristics, & Reproduction | Britannica
How phytoplankton function and survive in the ocean Learn about phytoplankton, plantlike types of microscopic algae that live suspended in bodies of water such as oceans. The term …