PLEASE HURRY IM TIMED! Which describes the role of oxygen in photosynthesis?
It is a reactant, so it is released by the plant.
It is a product, so it is released by the plant.
It is a reactant, so it enters the plant.
It is a product so it enters the plant.

Donde se encuentra el adn nuclear en un organismo eucariota?

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

The genetic code is essentially the same for all organisms. based on this information, one can logically assume which of the following statements to be correct? a. dna was the first genetic material. b. the same codons in different organisms translate into the different amino acids. c. different organisms have different numbers of different types of amino acids. d. a gene from an organism can theoretically be expressed by any other organism. e. all organisms have experienced convergent evolution.