A pioneer species is a hardy plant or algae that can take damage from a hard environment. They return after a disturbance. They increase a diversity in a region.
Hope this helps :)
1. Energy
2.tri-phosphate
3. bond
i take AP bio so make this a brainliest answer
The electron transport of respiration occurs in cell structures called mitochondria.
Light excites the electrons in chlorophyll a molecules of photosystem 1. As these electrons move to another primary electron receptor, electrons from photosystem 2 replace them.
Therefore the answer is FROM PHOTOSYSTEM 2.
I don't like to leave comments that aren't the answer, but I think you should provide a bit more context like, perhaps, a list of activities or the name of an organism.
