Biology, 12.03.2020 16:23 adriannabrooks18
In 2007, scientists Matthew A. Pasek, Jason P. Dworkin, and Dante S. Lauretta published their study on the corrosion of the meteorite mineral schreibersite (FeNi)3P. These scientists proposed the idea that the corrosion of this meteorite mineral released a phosphite-free radical that could form activated polyphosphates and phosphorylate organic compounds. Many life-forms have phosphorus in them in the form of ATP, DNA, and phospholipids. What does this study suggest about the origin of organic biological molecules on early Earth? A. DNA, ATP, phospholipids, and all other biological molecules developed on meteorites before they came to Earth. B. The substances brought to Earth from meteorites may have played a vital role in the first organic biological molecules. C. All organic biological molecules developed from the mineral schreibersite. D. Phosphorus was the only substance that created biological molecul
Answers: 1
Biology, 21.06.2019 19:00
What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?
Answers: 1
Biology, 21.06.2019 20:00
The images show the wings of a bat and a bee. from this evidence, what can you conclude about the evolutionary relationship between these organisms? a. the wing structures of the bat and the bee are different, indicating they didn’t inherit wings from a common ancestor. b. the wing structures of the bat and the bee are different, indicating they inherited wings from a common ancestor. c. the functions of bat wings and bee wings are the same, indicating they obtained wings from a common ancestor. d. the functions of bat wings and bee wings are different, indicating they didn’t obtain wings from a common ancestor.
Answers: 3
Biology, 22.06.2019 01:30
As a result of wildfires, in grasslands. a) tree growth increases b) grass growth increases c) soil quality decreases d) invertebrate variety decreases
Answers: 2
Biology, 22.06.2019 02:00
What would happen if the krill were removed from the food web
Answers: 2
In 2007, scientists Matthew A. Pasek, Jason P. Dworkin, and Dante S. Lauretta published their study...
Chemistry, 31.03.2020 00:28
Biology, 31.03.2020 00:28
History, 31.03.2020 00:28
Chemistry, 31.03.2020 00:28
Mathematics, 31.03.2020 00:28
Mathematics, 31.03.2020 00:29
Mathematics, 31.03.2020 00:29
Mathematics, 31.03.2020 00:29
Social Studies, 31.03.2020 00:29
Mathematics, 31.03.2020 00:29
Mathematics, 31.03.2020 00:29