Im assuming you mean the light-dependent reaction? if so the answer is the 3rd one
Survival of the fittest! Specific traits in an organism that keep its DNA prevalent despite being attacked by bigger organisms or natural disasters.
I do not know who christian Kane is :/
The important point is that the surface area<span> to the </span>volume ratio<span> gets smaller as the </span>cell<span> gets larger. Thus, if the </span>cell<span>grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased </span>cellular volume<span>.</span>
The pollen grain is actually the male gametophyte generation of seed plants. Inside the anther, pollen mother cells divide by meiosis to form pollen grains whose nuclei contain half the number of chromosomes characteristic of the parent plant.
(hope that helped answer the question)
