Describe an investigation to find out if adding vitamin D to the diet of young children will help to prevent rickets (a deformation of the legs).
Your answer should include experimental details and be written in full sentences.
(5)

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except

Which organism actively hunts other

Which statement describes the punctuated equilibrium theory?