What is one of the biomolecules for which nitrogen is needed (hint: they help build muscles)?

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

Where does the esophagus lead to in a frog?

True or false most plants are c3 plants, because they use molecules of carbohydrate known as g3p in their photosynthesis process.