¡ayuda! no

¿cuál de las siguientes es una demanda social que impulsa la exploración espacial?
curiosidad
b. necesidad de nuevas tecnologías
c. tanto a como b

if you speak

which of the following is a societal demand that drives space exploration?
a. curiosity
b. need for new technology
c. both a and b

a community that experiences major changes undergoes progress

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.