What happens when light hits the pigment in photosystem ll?
a. it altets the shape of the photosystem ll protine, allowing the light to pass into the thylakoid.
b. it set off a reaction that releases water molecules into the inner space of the thylakoid.
c. it alters the shape of the photosystem ll, releasing the water-splitting enzyme.
d. it sets off a reaction that moves energy through the proteins of the thylakoid membrane.

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.