A river is being polluted with fertilizer runoff from a neighborhood of houses.
This is considered
A. point source pollution
B. nonpoint source pollution
C. heavily regulated water pollution
D. illegal

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.

One of the purposes of transcription is to produce a sequence of bases that

Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?