What happens in the photosystem ii protein when it is hit by a photon of light? a. a channel in the photosystem ii protein allows the light to pass into the thylakoid. b. the water-splitting enzyme is released into the inner space. c. water molecules enter the thylakoid membrane and are split. d. an electron is excited and enters the electron transport chain

The chemical form of energy that is useable by the cell to do work

Which is an example of a vestigial structure? a: paw of a lionb: wing of a birdc: appendix of a humand: tail of a cat(i think it's a but i'm not sure)

Kara has a plant that produces either purple or white flowers. she crosses a plant that has two recessive alleles for white flowers with a plant that has two dominant alleles for purple flowers. which result would be true of all of the offspring? a) all of the offspring would have two recessive alleles and white flowers. b) all of the offspring would have two dominant alleles and purple flowers. c) all of the offspring would have one recessive allele, one dominant allele, and white flowers. d) all of the offspring would have one recessive allele, one dominant allele, and purple flowers