How do objects appear when seen through a microscope

What function does a limb serve in each animal how are the limb bones of the four animal similar based on the similarities what can be inferred about the evolution of the poor animals

Which statement best compares aerobic and anaerobic respiration

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2