Single-celled or simple multicellular eukaryotic organisms that generally don't fit on any other kingdom.
Sexual reproduction in which two individuals join and exchange genetic material stored in a small second nucleus.
A type of nuclei found in Ciliates that contains multiple copies of DNA that direct the cell's metabolism and development.
A type of nuclei that participates in the exchange of genetic material during conjugation in Ciliates.
An organelle found in Ciliates that collects food from thye oral groove and opens into a gullet.
Saclike organelles found in Ciliates that expand to collect excess water and contract to squeeze the water out of the cell.
Unicellular protists that are found in the phylum Bacillariophyta. They have cell walls consisting of two pieces that fit together like a lid and a box.
When populations of Dinoflagellates explode, they turn the water brownish red. The water becomes filled with toxins that kill numerous fish. The toxins are dangerous to humans who eat the fish.
Uncellular algae that are both plantlike and animal-like. Most are autotrophic, but lack a cell wall and are highly motile, like animals.
Plasmodial Slime Mold
Mass of cytoplasm that contains many diploid nuclei that are not seperated by cell walls. As it creeps along the forest floow, it consumes decaying leaves and other debris via phagocytosis.
Cellular Slime Mold
Individual haploid cells that move about like amoebas. The individual cells come together and act as one unit when water or food becomes scarce.
A process used by Dictyostelium cells that allows them to recognize AMP and crawl toward it.
A commercially important polysaccharide that comes from alginic acid. It is used in cosmetics and various drugs and it is used as a stabilizer in ice cram and salad dressings.
A sticky substance that lines the cell walls of certain species of red algae. It is a polysaccharide that is used to conrol the texture of many commercial and food products.
A polysaccharide that comes from the cell walls of red algae. It is used in scientific research for culturing microbes like bacteria. It is also used in the food industry.
A layer of diatom shells in large numbers at the bottom of lakes and oceans. This material is a component of many commercial products, such as detergents, paint removers, and toothpaste.
A tropical disease caused by a protozoan and transmitted to humans by mosquito. Itis characterized by severe chills, headache, fever, and fatigue.
Sexual forms of the malaria parasite. When a mosquito injests it, it forms gametes, which combine to form zygotes that develop into more sporozoites. This starts the lifecycyle of the parasite all over again.
An illness caused by Giardia lamblia. It is characterized by diarrhea and intestinal cramps. It is transferred through the consumption of contaminated water.
An iIlness casued by Cryptosporidium parvum. It is spread through contact with contaminated fecel matter.