Biology, 10.01.2020 01:31 rbgrh9465

Which group of organisms appeared for the first time during the ordovician period?
a. plants that live on land
b. plants that reproduce with seeds
c. single-celled organisms that perform photosynthesis
d. animals with shells or other hard parts

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Which group of organisms appeared for the first time during the ordovician period?
a. plants...

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