20. Which is a source of energy for Earth's living things?
I. trophic energy
II. sunlight<...
Answers: 3
Biology, 21.06.2019 21:00, cascyrio2002
If a robot fixed another robot is it a engineer or doctor?
Answers: 2
Biology, 22.06.2019 06:00, bandiadummy8595
Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell
Answers: 3
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 09:30, katiebotts18
The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?
Answers: 1
English, 09.09.2020 22:01
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