Which is more appropriate? a phytoplankton - fish - shark - whale
b shark - fish – krill – phytoplankton
c phytoplankton - seaweed - fish – whale
d phytoplankton - krill – fish –

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

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

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.