Biology, 05.07.2019 12:50 patricia1964
20. most of today’s organisms could not have lived on earth 3.6 billion years ago because there was no in the air then.
Answers: 1
Biology, 21.06.2019 20:00, scadengo123
In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls
Answers: 1
Biology, 22.06.2019 05:30, johniyabrown26
Which event would lead to primary succession of a forest?
Answers: 1
Biology, 22.06.2019 06:00, dshood6599
Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration
Answers: 2
Biology, 22.06.2019 09:20, vince022503
Match the following items 1. rr 2. rr 3. identical alleles 4. unlike alleles 5. rr ()homozygous, recessive ()homozygous definition ()heterozygous, dominant cell ()heterozygous definition () homozygous, dominant cell
Answers: 2
20. most of today’s organisms could not have lived on earth 3.6 billion years ago because there was...
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