Volvox is a freshwater green alga that proliferates by means of sexual and asexual reproduction. The cells that make up the rear portion of a volvox colony are generally involved in reproductive processes.Know More
Volvox typically forms into mucilaginous spherical colonies that are hollow along the edges and consist of numerous cells. A colony, also known as a "coenobia," can be easily seen, and it is more or less the size of a pinhead. The two flagella that are attached to each cell provide the means of locomotion for the organism. Volvox colonies are predominant in tropical and subtropical regions.
Zoologists often classify volvox in the order volvocida while botanists place it in a category with green algae. Of the 20 species that have been identified, the volvox organism is said to be the most complex among the green algae family. Volvox colonies have evolved specialized cells, called "gonidia," which form daughter or even granddaughter colonies during asexual reproduction. These new colonies are produced within the original parent colony. When a daughter colony matures, it undergoes an inversion process where it creates the flagella. Once the granddaughter colony emerges, the parent colony breaks down. During sexual reproduction, gametes that were initially produced mature into eggs and spermatozoa. A fertilized egg results to the formation of a thick-walled embryo. New volvox colonies usually appear in the spring.Learn more about Biology
Characteristics of a Volvox include the fact that each cell contains two flagella, which aids in movement through water, and the colonies reproduce asexually. The cells of a Volvox are held together by protoplasm strands.Full Answer >
The primary disadvantage to asexual reproduction is the lack of genetic diversity among the resulting offspring. In contrast to sexual reproduction, which involves the recombination of two different sets of genes, an asexual organism possesses the same genes as its parent did. This can lead to problems if the parent has a genetic defect; without another parent to replace the gene, the offspring possesses the defect as well.Full Answer >
According to HowStuffWorks, some types of algae reproduce asexually through the division of one cell into two or even more new cells that are genetically similar to the original parent cell. Other types of algae engage in sexual multi-cellular reproductive cycles to procreate.Full Answer >
According to Jennifer Welsh for Live Science, amoebas are generally considered to reproduce asexually through a process called binary fission. This describes the act when the nucleus of one cell is spurred to divide into an equal and exact replica of itself within the same cell walls, after which the two nuclei separate into their own individual cells, resulting in two sovereign yet genetically identical amoebas.Full Answer >