What is Evolution in Biology?

What was the land like over 500 million years ago? what was under the sea?

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?