Final answer:
The major difference between plants and animals is that animals give up carbon dioxide as a waste product of respiration while plants do not.
Step-by-step explanation:
A major difference between plants and animals is that there is free movement in animals while this is limited in plants. Animals consume inorganic materials as food while plants consume organic materials. Animals give up carbon dioxide as a waste product of respiration while plants do not. Therefore, the correct option is d.
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