Is Eudorina a colonial algae?
Remarks: Within the colonial volvocine green algae, three genera (Yamagishiella, Colemanosphaera, and Eudorina) have 32-celled spheroidal colonies without somatic cell differentiation [20,31].
Which of the following algae is multicellular?
Brown algae (Phaeophyta) are multicellular marine seaweeds. Some can be extremely large, such as the giant kelp (Laminaria).
Which type of algae consists of only multicellular organisms?
Charophytes
Charophytes are also the only algae that develop multicellular sex organs, although these are not comparable to those of the higher plants. Rhodophyta or red algae are comprised of approximately 4, 000 species of mostly marine algae, which are most diverse in tropical waters.
What structure is not essential for algae?
Since algae lack vascular tissue, they do not have true shoots, stems, leaves, or roots. A thallus is the term used to describe the main body of an alga (Fig. 2.20).
Does Eudorina show Anisogamy?
Genomic Insights into the Biology of Algae Volvox and other large colonials (Pleodorina, Eudorina) transitioned from an isogamous ancestral mating system to an anisogamous or oogamous one with eggs and sperm. There are striking similarities and differences between the mating loci of Chlamydomonas and Volvox.
What is the meaning of Eudorina?
: a genus related to Volvox and comprising flagellates that produce markedly anisogamous gametes and form spherical or ellipsoidal colonies.
Is green algae multicellular?
Modern green algae constitute a large and diverse taxonomic assemblage that encompasses many multicellular phenotypes including colonial, filamentous, and parenchymatous forms. In all multicellular green algae, each cell is surrounded by an extracellular matrix (ECM), most often in the form of a cell wall.
What do algae eat?
Algae does not consume organic materials; instead, it feeds on the waste materials produced by decomposing materials and the waste of marine animals. The growth of algae is dependent on the process of photosynthesis where the bacteria that forms the organisms takes energy from the rays of the sun to use for growth.
Is Ulothrix Isogamous or Oogamous?
Ulothrix is a member of green algae which is commonly found in marine life and fresh waters. Ulothrix reproduces asexually by fragmentation and by non-motile spores and sexually by the formation of flagellated gametes which are morphologically same. Thus, sexual reproduction in Ulothrix is isogamous.
What is the difference between anisogamy and OOgamy?
Anisogamy is the fusion of gametes in dissimilar size. OOgamy is the fusion of large immobile female gametes with small motile male gametes.
How to choose the best algae eaters for your aquarium?
Pick a species or two that’s compatible with the other fish and invertebrates you have and that works with your aquarium’s size, temperature, pH, and water hardness. Most algae eaters prefer densely planted tanks although some species do well in tanks without live plants.
What kind of fish can eat diatom algae?
Their smaller, slender bodies allow them to fit into tighter spaces than other algae-eating fish. Like the hillstream loach, their mouths are ideal for eating diatom algae from flat surfaces, and you can find them usually hanging out on the aquarium glass or plant leaves.
What kind of algae can a nerite snail eat?
With their beautiful zebra like shell, and their huge appetite for algae, it’s no surprise why these little gems are as common as they are. Nerite Snails are known to eat every type of algae found in a freshwater aquarium, including the harder to eradicate ones such as Green Spot Algae and Green Beard Algae.
What kind of algae does a SAE eat?
Their downturned mouths are well-suited for eating hair algae, black beard algae, and leftover scraps in the fish tank. SAEs are known to tend to eat more algae as juveniles because the adults are big enough to get the lion’s share of feedings in the aquarium.