Which statement best describes the relationship between photosynthesis and cellular respiration

What is thought to have caused the mass extinction at the end of the cretaceous period?

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.

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