Answer:
photosynthesis is what organisms use to create food and energy. this comes from the sun. and cellular respiration is carbon dioxide that comes from the animal after photosynthesis
Explanation:
in the nucleolus of the cell
The one with the the limestone thingy is faster because the friction is loss
my educational guess
Answer:
B. External respiration
Explanation:
Respiration means transport of oxygen to the cells within tissues, and the transport of carbon dioxide in the opposite direction.
