The evolution of vascular tissue in plants made it easy for them to grow much taller. What types of selection pressures do you think early plants could have faced that favoured taller plants and the evolution of these tissues?

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last

1)some people believe that certain drugs such as marijuana should be legalized. do you agree or disagree? 2)what impact might legalization have on forensic science as a field? which drug presents the greatest challenges to forensic science? why?

He nfipa 704 system uses a numerical value between and to indicate the level of hazard for that particular chemical. a) 1; 100 b) 0; 4 c) 1; 20 d) 0; 9