What is the second leading cause of death in both caucasian females and males, right after heart disease?

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.

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.