False. Sometimes pushing yourself can help your mind to tell itself "I can do this!" Besides, sometimes pain is a great motivator!
Answer & Explanation:
Plants are unique because they have chloroplasts, which absorb light energy from the Sun.
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Answer:
A. The cryosphere is part of the hydrosphere
Explanation:
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Brainliest pls? Have a good day/night
Answer:
The correct answer is b. He determined that DNA contains four nitrogenous bases.
Explanation:
Levene was an American biochemist who studied the structure of DNA in the early 1900s and in 1920 he found that DNA consists of four nitrogenous bases that are Adenine, Guanine, Thymine, Cytosine.
He also found deoxyribose sugar and phosphate group and said that nucleotide is the basic unit of DNA which contains a ribose sugar with attached nitrogenous base and phosphate group.
He also concludes that an equal amount of adenine, guanine, thymine, and cytosine makes the DNA which is now known as tetranucleotide hypothesis. So the correct answer is b. He determined that DNA contains four nitrogenous bases.
