Algae are any eukaryotes, other than plants, that conduct photosynthesis. They range from single-celled organisms to multicellular seaweeds over 180 feet in length with specialized organs. They are found in most environments, especially very wet ones, perhaps most notably the oceans, where they are the dominant producers.Continue Reading
Algae are an extremely varied group with boundaries as much defined by what they are not as what they are. While plants have several characteristics that distinguish them from algae, the same can not be said of algae in relation to plants. Multicellular algaes, such as kelp, do have distinct structures, such as fronds, floats, and holdfasts, but they do not have well-differentiated tissues, and any part of a kelp organism will, under the right conditions, regrow the rest of its structures.
Algae are vastly important organisms, in many ways more important to life overall than the more commonly encountered plants. They sit at the base of nearly all oceanic food chains, and single-celled algaes such as diatoms are actually produce vastly more oxygen than all land plants combined. Indeed, they produce enough oxygen that, should all land plants disappear, there would still be sufficient atmospheric oxygen produced for many land animals to breathe.Learn more about Biology
Amoeba are unicellular eukaryotes with no cell wall. They reproduce using binary fission and move by the use of pseudopodia. Pseudopodia are false feet that extend out, and then the rest of the body follows. Amoeba are found in ponds, rivers and on the surface of leaves and plants.Full Answer >
Fungi are eukaryotes. They reproduce by means of spores, and they reproduce both sexually and asexually. They are nonvascular, and they are heterotrophic. Fungi store their food as starch. They have a small nucleus. They digest their food before they ingest it. They are nonmotile. They have cell walls composed of chitin.Full Answer >
Eubacteria are one of the two major groups of single cell organisms that lack nuclei and many other organelles found in eukaryotes. They have vast diversity, with a wide range of habitats and lifestyles, but all either have an elongated helical shape, a rod shape or a sphere shape.Full Answer >
Cyanobacteria, algae and tracheophytes are organisms that perform photosynthesis. These organisms absorb large quantities of sunlight, which is then converted into energy. During the process of photosynthesis, the organisms combine sunlight with water, which produces a sugary substance called glucose.Full Answer >