This hollow tube along the back of an animal with nerves running inside or beside it is a characteristic of chordates. 1. nervous system
2. spinal cord
3. spine
4. notochord

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?