Some water, a small amount of soil a, few green aquatic plants and a fish were placed in a large bottle. The bottle was sealed to prevent the exchange of gases and other materials between its contents and the outside. The bottle was placed in a window to receive light during the daytime. Is carbon dioxide produced by the plants ?

No, it is a waste product of animals only.

Yes, but it is produced only at night when the plants can no longer carry on photosynthesis.

It is produced all the time as a result of cellular respiration.

No, plants take in only the waste products exhaled by animals.

Some water, a small amount of soil a, few green aquatic plants and a f

1.	Some water, a small amount of soil a, few green aquatic plants and a fish were placed in a large bottle. The bottle was sealed to prevent the exchange of gases and other materials between its contents and the outside. The bottle was placed in a window to receive light during the daytime. Is carbon dioxide produced by the plants ?
A.	Yes, but it is produced only at night when the plants can no longer carry on photosynthesis.
B.	It is produced all the time as a result of cellular respiration.
C.	No, it is a waste product of animals only.
D.	No, plants take in only the waste products exhaled by animals.
Answer» C. No, it is a waste product of animals only.

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