Biology, 31.01.2020 11:50 angelisevega
Tilizing ultisols for agriculture requires a. extensive irrigation b. fertilizer to balance the high alkalinity of the soil c. adding organic matter to supplement the shallow horizons d. fertilizer to replace nutrients that leach from the soil
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Biology, 22.06.2019 08:30
What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons
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Biology, 22.06.2019 09:00
Several billion years ago which gas was the least prevailant in the atmosphere
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Biology, 22.06.2019 21:40
According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this? a. this implies that dna and proteins aren't essential in cells today. b. this implies that rna can catalyze any chemical reaction that enzymes catalyze. c. this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna. d. this implies that dna and proteins evolved after rna.
Answers: 2
Tilizing ultisols for agriculture requires a. extensive irrigation b. fertilizer to balance the hig...
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