What determines how far south the cold air from the north pole travels?
a. the jet stream
b. the gulf stream
c. the polar easterlies
d. the trade winds

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

Which codon is the code for the amino acid histidine (his)?

What happens whenever a net force acts on an object