D: it’s typically associated with cloudy weather and precipitation.
It shows that a scientist can be creative because they used the fish's coughing technique to search for contaminated water.
When Went placed the agar block on one side of the decapitated shoot, the shoot curved away from the agar as it grew. This demonstrated that some kind of hormonal signal had diffused into the agar from the coleoptile tips. ... Went's experiment represented the first time that anyone had isolated a hormone from plants.
