What must happen to a plant before photosynthesis can begin

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?

Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form