unicellular organism lacking a nucleus
spiral or corkscrew-shaped prokaryote
organism that must take in organic molecules for both energy and carbon
organism that is photosynthetic but needs organic compounds as a carbon source
organism that uses energy from sunlight to convert carbon dioxide and water to carbon compounds
organism that makes organic carbon molecules from carbon dioxide using energy from chemical reactions
organism that requires a constant supply of oxygen in order to live
organism that cannot live in the presence of oxygen
organism that can survive with or without oxygen
type of asexual reproduction in which an organism replicates its DNA and divides in half, producing two identical daughter cells
form of sexual reproduction in which paramecia and some prokaryotes exchange genetic information
type of spore formed when a bacterium produces a thick internal wall that encloses its DNA and a portion of its cytoplasm
process of converting nitrogen gas into ammonia
particle made up of nucleic acid, protein, and in some cases lipids that can replicate only by infecting living cells
outer protein coat of a virus
virus that infects bacteria
process in which a virus enters a cell, makes a copy of itself, and causes the cell to burst
process by which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell's DNA
the viral DNA that is embedded in the host cell's DNA
virus that contains RNA as its genetic information
a preparation of weakened or killed pathogens
compound that blocks the growth and reproduction of bacteria
single-stranded RNA molecule that has no surrounding capsids
infectious particle made up of protein rather than RNA or DNA
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