What is the difference between a bony fish and a cartilaginous fish?

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

What pattern of migration do whales follow?