Multiple choice: why have none of the competing hypotheses about the origin of life on earth been developed into a scientific theory?
another conflicting hypothesis that holds the answer has yet to be stated.
the hypotheses only disagree in whether self-replicating material was dna or rna.
these particular hypotheses are not testable.
the results of experimentation often yield conflicting data.
Answers: 1
Biology, 21.06.2019 23:00
Which image shows labeled organelles that are present only in plant cells?
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Biology, 22.06.2019 02:00
Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z
Answers: 1
Biology, 22.06.2019 14:20
Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae
Answers: 1
Multiple choice: why have none of the competing hypotheses about the origin of life on earth been d...
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