BiOloGy ClAsS

Chlamydia is a common sexually transmitted disease (STD) caused by the bacterium, Chlamydia trachomatis, which can damage a woman's reproductive organs. Even though symptoms of chlamydia are usually mild or absent, serious complications that cause irreversible damage, including infertility, ca

n occur "silently" before a woman ever recognizes a problem. Chlamydia also can cause discharge from the penis of an infected man.

 A group of eukaryotic organisms belonging to the kingdom Protista according to some widely used modern taxonomic systems. The protists include a variety of unicellular, coenocytic, colonial, and multicellular organisms, such as the protozoans, slime molds, brown algae, and red algae.Most are single-celled organisms, though the algae tend to be multicellular. Many can move, mainly by using flagella (see flagellum), cilia (see cilium), or footlike extensions (pseudopodia

A fungus) is a eukaryotic organism that is a member of the kingdom Fungi ^] The fungi are a monophyletic group, also called the Eumycota, that is phylogenetically distinct from the morphologically similar slime molds  and water molds. The fungi are heterotrophic organisms possessing a chitinous cell wall, with the majority of fungal species growing as multicellular filaments called hyphae forming a mycelium; some fungal species also grow as single cells. Sexual and asexual reproduction of the fungi is commonly via spores, often produced on specialized structures or in fruiting bodies. Some species have lost the ability to form reproductive structures, and propagate solely by vegetative growth. Yeasts,molds, and mushrooms are examples of fungi. The fungi are more closely related to animals than plants, yet the discipline of biology devoted to the study of fungi, known as mycology, often falls under a branch of botany.