Take a deep breath. where does that air you breath in go? it goes into your lungs, but that's not the end! your circulatory system to move the oxygen to all of your cells. what carries the oxygen to every cell in your body?
a) blood
b) food
c) heart
d) veins

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

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As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes