1. Nitrogen from the atmosphere must be converted into what molecule? What organisms add this molecule to the soil?

Why would a drug the damages capsids treat a viral infection

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?

Which factor most likely caused animals and plants in india to differ greatly from species in nearby southeast asia?