Which aquatic biome forms where freshwater streams or rivers merge with the ocean? form where freshwater streams or rivers merge with the ocean.

What is the difference between a scientific hypotheses and a scientific theory?

Describe the layers of the suns atmosphere?

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?