Binary fission in amoeba
Answers
Explanation:
An amoeba or ameba (/əˈmiːbə/; rarely spelt amœba; plural am(o)ebas or am(o)ebae /əˈmiːbi/),[1] often called an amoeboid, is a type of cell or unicellular organism which has the ability to alter its shape, primarily by extending and retracting pseudopods.[2] Amoebae do not form a single taxonomic group; instead, they are found in every major lineage of eukaryotic organisms. Amoeboid cells occur not only among the protozoa, but also in fungi, algae, and animals.[3][4][5][6][7],In older classification systems, most amoebae were placed in the class or subphylum Sarcodina, a grouping of single-celled organisms that possess pseudopods or move by protoplasmic flow. However, molecular phylogenetic studies have shown that Sarcodina is not a monophyletic group whose members share common descent. Consequently, amoeboid organisms are no longer classified together in one group.[10]
The best known amoeboid protists are Chaos carolinense and Amoeba proteus, both of which have been widely cultivated and studied in classrooms and laboratories.[11][12] Other well known species include the so-called "brain-eating amoeba" Naegleria fowleri, the intestinal parasite Entamoeba histolytica, which causes amoebic dysentery, and the multicellular "social amoeba" or slime mould Dictyostelium discoideum.
Amoebae do not have cell walls, which allows for free movement. Amoebae move and feed by using pseudopods, which are bulges of cytoplasm formed by the coordinated action of actin microfilaments pushing out the plasma membrane that surrounds the cell.[13]The earliest record of an amoeboid organism was produced in 1755 by August Johann Rösel von Rosenhof, who named his discovery "Der Kleine Proteus" ("the Little Proteus").[39] Rösel's illustrations show an unidentifiable freshwater amoeba, similar in appearance to the common species now known as Amoeba proteus.[40] The term "Proteus animalcule" remained in use throughout the 18th and 19th centuries, as an informal name for any large, free-living amoeboid.[41]
Answer:
Binary fission:
Binary fission is a way of reproduction in which the parent cell gets splitted into 2 and gives rise to two new daughter cells.this is called binary fission
Binary fission occurs in lower organisms.
Binary fission in amoeba:
Amoeba is protozoan and its mode of reproduction is asexual in asexual reproduction binary fission .
In amoeba first the karyokinesis takes place karyokinesis means the division of nucleus.
After the division of nucleus the cytokinesis takes place .
Cytokinesis means the divison of cytoplasm .
At the time of division after karyokinesis each nuclei which has been divided gets split into two different offsprings.
And after that two new daughter cells are formed. Please markme as brainliest and thank me
