Which muscle(s) are used to extend and splay your fingers outward?

Which situation is an example of competition that could be found in the grassland? a. two lion populations utilize the same gazelle population as their main food source b. deer eat berries and their droppings seed new areas, creating new berry bushes c. two shark populations utilize the same fish population as their main food source d. lack of sunlight due to changes in the seasons restricts the growth of certain plants

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

What field of science did harry hess study?