Adenine makes up 22% of the DNA of an organism. Approximately what percentage would be thymine? A. 28%
B. 22%
C. None of these
D. 56%

Which element provides strength to the exoskeleton of clams and oysters

The pattern of this wave changes between its beginning and end. what is true about the amplitude and wavelength of the wave when the pattern changes?

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection