What is the main difference between purines and pyrimidines?

Why is it necessary to phosphorylate a glucose molecule, creating glucose-6-phosphate? why is it necessary to phosphorylate a glucose molecule, creating glucose-6-phosphate?

What separates the oral cavity from the nasal cavity?

suppose you are going to begin a scientific investigation. What should be one of the first things everyone in your group should do?

What trait of chloroplasts leads scientists to believe they were once independent microbes?

Nucleotide sequence comparisons are possible because all organisms share what

Which two structures contain DNA

When reproduction is achieved through meiosis and subsequent fertilization it is called?

Which statement is correct? A. Both plants and fungi undergo photosynthesis. B. Both protists and fungi are eukaryotic. C. Like some prokaryotes, fungi are autotrophic. D. Both animals and fungi lack cell walls.

In an ecosystem, bees are responsible for the pollination of flowers. Over time, the number of bees in the population have increased. Which of these best explains why the number of flowers in the population have also increased?

What is a likely consequence of continued human population growth?