Option B
An important factor in Oswald Avery's ability to identify the "transforming principle” as DNA was the fact that proteins contain very little phosphorus
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Oswald Avery manifested an approach to clarify this transforming principle. He then conveyed a range of chemical tests to discover out what it was. Scientists did comprehend that genes were placed on chromosomes and that chromosomes consisted of DNA and proteins.
At the event, yet, proteins resembled to be a better alternative for the genetic material. Chemical analysis explicates that the proportions of elements in the decoction exactly resembled those observed in DNA. Proteins comprise substantially no phosphorus.
Answer: A. D or electron transport chain
Explanation: first protein complex of the light-dependent reactions, which is located in the thylakoid membrane, and the electron transport chain is also a factor in it but it doesn't mention that.
The scientific name for a living thing is an organism.
Answer:
Neither A nor B is correct
Explanation:
Hydrologic cycle is the sequence of different conditions through which the water passes from oceans to clouds, precipitates as rains, comes to the rivers and finally reaches the ocean.
This first statement in the question said that water will end up in the river which is not true because water from the river ultimately ends in the oceans because all the rivers terminate in the oceans finally.
The second statement is also wrong because when water from one ocean vaporizes and becomes cloud, it can travel large distances as clouds in the effect of wind and thus may get precipitated in the form of rain in some other part of the world. So, it is not necessary that the water will end up in the same ocean.