Cuando una persona introduce su mano en agua caliente, la retira rápidamente como acción defensiva, En este caso el estímulo es: A) retirar la mano
B) retirar rápidamente la mano
C) la diferencia de temperatura entre el aire y el agua
D) el agua caliente
E) la mano

In each transformation of energy , some energy what?

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food

What’s a example of extrusive rock that cooled to quickly for grains to form