Learn about asexual organisms, or organisms that reproduce asexually. Read examples, and understand the advantages and disadvantages of asexual...
The process of fertilization that occurs outside the body of organisms is called external fertilization. (e.g., algae, amphibians, fishes, etc.) Internal Fertilization If the syngamy occurs inside the body of organisms, it is called internal fertilization. (e.g., fungi, reptiles, birds, highe...
Living organisms need to reproduce to sustain their species. Some species reproduce sexually and combine their DNA to produce a new organism. Sexual reproduction requires both an egg and sperm that combine to create a new organism that possesses a combination of genes from both parents. Organisms ...
Types of Speciation Learning Outcomes Differentiate between types of speciation The biological definition of species, which works for sexually reproducing organisms, is a group of actual or potential interbreeding individuals. There are exceptions to this rule. Many species are similar enough that hybrid...
The primary method that protists reproduce is binary fission, where the protist asexually reproduces. A second way a protist reproduces is through the process of multiple fission, and it creates numerous nuclei before dividing into multiple new organisms. A third method that protists reproduce is...
000 new cases in 2018.Nearly 90%of the 311,000 deaths worldwide in that year occurred in low-and middle-income countries.Objective:To estimate the prevalence of HPV among sexually active women in Lagos,Nigeria;and to determine the most common HPV type among that category.Methods:A descriptive...
The anal canal itself is rich in nerve endings, but the rectum, which sits just past the canal, shares a thin wall with the vaginal canal, she notes. This means that the G-spot, the internal apex of the clitoris, can be reached indirectly — through the backdoor, if you will — thr...
Fertilization is necessary for all organisms that reproduce sexually and there are two mechanisms by which fertilization can take place. These includeexternal fertilizationin which eggs are fertilized outside of the body andinternal fertilizationin which eggs are fertilized within the female reproductive t...
Algae can reproduce sexually, asexually or by a combination of both processes throughalternation of generations. The types whichreproduce asexuallydivide naturally (in the case of single-celled organisms) or release spores which may be motile or non-motile. Algae that reproduce sexually are generally...
Different kinds of eukaryotic organisms that undergo sexual reproduction have different types of sexual life cycles. These life cycles determine how the organism will not only make its offspring but also how the cells within the multicellular organism will reproduce themselves. The sexual life cycle de...