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characteristics of living things (life comes from life (pastures…
characteristics of living things
characteristics of living things
all living things have
cellular organisation
contain similar chemicals
water
carbohydrates
proteins
nucleic acids
use energy
repairs
respond to there surroundings
reaction to stimulus
grow and develop
reproduce
to make offspring similar to there parents
cellular organisation
a cell is the basic unit of structure in an organism
unicelular
single celled organism
examples
bacteria
amoeba
yeast
multicelular
many cells
examples
humans
monkeys
cuttlefish
life comes from life
living things come from living things through reproduction
spontaneous generation
the belief that life can come from non-living things
Redi's experiment
too jars with meat
uncovered jar
maggots
covered jar
no maggots because there was no flies to lay them
pastures experiment.
boiled broth
stayed the same
when taken off the heat and had the curved spout broken collected bacteria and became cloudy
unboiled broth
collected bacteria and became cloudy
the needs of living things
food
used to get energy
autotrophs
make there own food
ex. plants
heterotrophs
feeding on others
ex. humans
water
good for dissolving chemicals
all living things need this
living space
a place to get food water and shelter
homeostasis
stable internal condition