Two common features in high velocity trauma

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

Which type of neuron stimulates muscles to contract?

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?