Which of the following would be considered a quantitative observation? a.) the attractiveness of the tail feathers of male peacocks is compared
b. ) the height of radish seedlings is measured
c.) butterfly wings are assessed to see which is the most orange in appearance
d.) the odor of different plants is compared to see which smells the worst

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.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

In "the pig," what is the main effect that the piglet initially has on kibuka?