A gas produced by bacteria from hydrogen and carbon dioxide
Reproduction in which a bacterial cell divides into two cells that look the same as the original cell.
An organism that decomposes dead organisms or waste matter.
A closeness in which two organisms live together and help each other.
A relationship in which one organism benefits and the other is not affected.
A poison produced by bacteria or other organisms.
Bacteria that dry up and form into cells with thick walls.
Microscopic alga that has a hard shell.
A protozoan that moves by using its hairlike cilia.
A protozoan that is a parasite and lives in blood; may cause sleeping sickness.
a protozoan that is a parasite and lives in blood; may cause malaria.
The opening through which a paramecium takes in food.
A bubblelike structure where food is digested inside a protozoan.
The opening through which undigested food leaves a paramecium.
The movement of water through a cell membrane.
A structure in a protist that removes water that is not needed.
A structure on many protists that senses changes in the brightness of light.
Reproduction that involves one parent and no egg or sperm.
Reproduction that involves two parents, and usually an egg and sperm.
Thin, tubelike threads produced by a fungus.
A mass of hyphae.
A drug that is produced from mold and that helps prevent the rejection of transplanted organs.
A chemical that causes liver cancer and is produced by molds growing on stored crops.
Reproduction in which part of an organism pinches off to form a new organism.
A mutualism between a fungus and the roots of a plant.
An organism that is made up of a fungus andan alga or a bacterium.