Concentrados generalmente en depósitos gigantes, los combustibles fósiles han sido abundantes y baratos; allí el precio se ha fijado en gran parte simplemente en algún marcado en el costo de sacarlos del suelo y hasta el punto de consumo. Por lo tanto, el mundo se ha acostumbrado a que la energía sea increíblemente barata en comparación con cualquier tiempo anterior en la historia humana.
Hi!
I believe the answer is letter D.
Hope this helps!
-Payshence xoxo
Speciation, when populations evolve to become distinct species
The correct answer is B. Sensitive period
Explanation:
In development, the sensitive period refers to a lapse of time in which organisms are more susceptible or receptive to stimuli and therefore during this time there can be great advances in development. Additionally, different from critical periods sensitive periods do not imply irreversible consequence if the stimuli are not presented. For example, in human beings from birth to the age of 6 years, children are more receptive to learn and acquire certain skills such as learning a new language if exposed to it and therefore this can be considered as a sensitive period. Considering this, it can be concluded the definition presented refers to the Sensitive period.
The answer is heterotrophic
