What molecule absorbs sunlight for photosynthesis

Aresearcher is studying the science of attractiveness and asks volunteer test subjects to rank what trait they find most attractive in a person what type of variable is the dependent variable in this experiment

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

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin