Answer:
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
Explanation:
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Because carbohydrates can be converted into energy but can not store energy.
Circulatory system
The circulatory system is the transport system for endocrine information. While the nervous system uses neurons, the endocrine chemicals and hormones must circulate through the body via blood vessels. Many glands in your body secrete hormones into the blood.
Answer:
b.sedimentary rock
Explanation:
because when magma cools it hardens