In the cell which organelle has the function of using oxygen in the breakdown of glucose releasing energy and carbon dioxide

mitochondria

Explanation:the mitochondria is the ''power house'' of the cell it makes all of the cells energy

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.