Which of the following is correct? a. the purine g bonds with the purine c. b. the purine c bonds with the pyrimidine g. c. the pyrimidine c bonds with the purine g. d. the pyrimidine c bonds with the pyrimidine g.

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells

What is the most abundant vertebrate on earth?

What is any method of measuring the age of an object or event in years, such as using atomic half-life?