How many kg of rice seed is required to plant 2 hectares, if the number of seeds per unit weight is 22,000/kg, desired plants/ meter square is 300, germination is 85 % and seed purity is 90 %?

How do you date a sample of rock that you suspect as being one of the earliest on earth

Can create a hboth of these instruments can measure wind speed. doppler radar and psychrometer anemometer and hygrometer doppler radar and anemometer radiosonde and psychrometer

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.