Biology Qs the Primary Source Thesis

Excerpt from Thesis :

Most fungi can also reproduce through sexual reproduction both with the same organism mixing gametes and with reproduction between two separate organisms. The cells of many fungi are primarily copies of each other, without differentiation of organs (except in the fruiting sections of the organism, such as the mushrooms and molds typically visible and known to humans).


Fungi are considered a separate kingdom for several reasons. They are different from plants in their inability to produce energy from sunlight, and in fact most grow in dark places. Unlike animals and many protozoa, they cannot move; unlike most protozoa, they exist almost entirely as multicellular and colonial organisms.


The various classifications of fungi are determined based on their method(s) of reproduction. Zygomycota produce both asexual and sexual spores, while Basidiomycota rarely produce asexually and produce a different type of sexual spore. Ascomycota produce asexual spores, and can also grow buds that break off and form new organsiams as well as growing new and sexually differentiated hyphae as means of reproduction. Deuteromycota have never been observed to reproduce sexually, meaning that the organisms today have been genetically unaltered for millions -- perhaps billions -- of years.


a. Because almost all algae create energy from photosynthesis, it makes sense that algae would be more prevalent during the months when they receive the most sunlight. The warmer months are made warmer by the increased sunlight during the time, which would also encourage algae growth.

b. Many algae species, in addition to performing photosynthesis, are also heterotrophs. Fertilizers contain many compounds that algae are made up of, and the increased use of fertilizers thus provides another food source for many species of algae as well as creating environments that are unfriendly to competing organisms.


a. A protozoan trophozite or cyst is more likely to be infectious and cause symptoms after the visible infection has passed. It is at this point that the schizoint has burst open, releasing the merozoites that can spread through and outside the body, spreading infections and causing symptoms.

b. Cysts are able to withstand much harsher conditions than trophozites. On the relatively mild surface of the eye, this would make little difference, but in the highly acidic stomach and digestive tract, the trophozites are more likely to be destroyed while the cysts can survive to cause illness.


a. Eukaryota, Fungi, Ascomycota

b. Eukaryota, Protista, Protozoa, Ciliophora

c. Eukaryota, Protista, Algae, Phaeophyceae, kelp

d. Eukaryota, Protista, Algae, Bacillariophyta, diatoms


Cite This Thesis:

"Biology Qs The Primary Source" (2009, September 14) Retrieved May 26, 2020, from

"Biology Qs The Primary Source" 14 September 2009. Web.26 May. 2020. <>

"Biology Qs The Primary Source", 14 September 2009, Accessed.26 May. 2020,