flagellum is the answer! Hope this helps!!!!!
Answer:
the kidneys are the most important function of the urinary system
Explanation:
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The characteristics that bryophytes share with algae are biflagellate motile gametes and the life cycle. The life cycle, of course, is the duration of the life of the object. Biflagellate motile gametes are made when two or more of the motile gametes fuse into a zygote.
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.
