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Living Things 1.2

Chapter 1.2

bacteria These are the simplest form of life. They are made up of just one cell and do NOT have a nucleus.
cell wall This protects the bacterium from its surroundings.
shape Bacteria are classified by their external _____. They are either spiral, rod or round shaped.
binary fission This is how bacteria reproduce.
nuclei Neither bacteria nor archaea contain one of these.
archaea This single-celled organism can survive in many extreme environments.
methanogens This type of archaea can survive in swamps and the guts of cows.
halophiles This type of archaea can survive in salty lakes and ponds.
thermophiles This type of archaea can survive in really hot places and really cold places.
chlorophyll The chemical that plants and some bactiera use to make their own food.
environment Bacteria can be classified by how they affect their _____________.
producers This type of bacteria are a food source for other organisms.
decomposers This type of bacteria break down dead or decaying organisms.
parasites This type of bacteria can either help or harm its host.
helpful This type of bacteria is found in yogurt.
harmful This type of bacteria can poison bodies.
Created by: srandall