Biology Protist Question?

Question

The person who gets all the answers right (first obviously) will get 10 points.

The questions are:

List some common uses of protist

List some benefits of protist

List some harmful protist

Jerry P does not have the right answer to the first and second questions. So keep answering everybody!!

Answer 1

1. Phylum Bacillariophyta: Diatoms Diatoms are probably the most abundant aquatic eukaryotes in number of individuals and species. They live singly or in simple filaments or colonies, they occur in either type of aquatic environment. Their shells are used as filtering material for swimming pools and water treatment facilities.
Phylum Phaeophyta: Brown Algae Most brown algae live in the cool waters off the temperate and sub polar areas. Members of the genus Fucus are good examples. They are a major food source for Asian cusine.

2. Algae The term algae embraces all photosynthetic protists. It refers to an aquatic, photosynthetic way of life, not an evolutionary kinship. Most algae live in water, but some are terrestrial. Most algae live near the surface of the water producing 30 to 50 percent of the earth's oxygen.

Chlorophyta: Green Algae The ancestors of all plants were undoubtedly members of phylum Chlorophyta. Green algae show great diversity of form and live in a variety of habitats. Many are single celled; others form simple or branched filaments, or hollow balls of cells, or broad flat sheets. Food supply for many forms of animal life, symbionts with hydrozoans (coral), Use in ice cream making.

3. The species Entamoeba histolytica, can cause a serious disease in humans if it finds its way into the intestine.
Phylum Zoomastigina: Trypanosomes, which live in the blood of vertebrates causing sleeping sickness and Chagas' disease. Leishmaniasis is transmitted by sand flies in Africa, causing ulcers on the skin and internal organs. If untreated, it is fatal within two years.
Phylum Apicomplexa All apicomplexans are parasites. In typical parasite fashion, most have complicated life cycles, often with two different hosts. The phylum name is named for the "apical complex" found on the end of the motile stage used to enter the host. Human malaria is caused by four species of Plasmodium.
Phylum Oomycota: Water Molds The parasitic oomycote Phytophtora infestans caused the Irish potato famine in the 1800's where millions of people died and many emigrated to the United States.

Answer 2

Oh yippee 10 points. :rolleyes:

1. The are used as food for newly hatched fish.
2. They are at the base of the food chain.
3. Malaria plasmodium.

Answer 3

1.) The Phylum Bacillariophyta is commonly used to make chalk and talc.

2.) Coralline algae deposits limestone in sheets in coral reefs and contributes to the structural integrity of the reef.

3.) Trypanosoma brucei and cruzi, Leishmania donovani and tropica, and Giardia lamblia.

Answer 4

-Bread, beer
-ZOOPLANKTON, constitutes one of the primary sources of energy in aquatic ecosystems
-Entamoeba histolytica, Plasmodium vivax.Toxoplasma gondii, Trypanosoma cruzi, Theileria parva