Explanation:
I don't know for sure for the first one and A is the answern
Explanation:
A body cavity is any space or compartment, or potential space, in an animal body. Cavities accommodate organs and other structures; cavities as potential spaces contain fluid. The two largest human body cavities are the ventral body cavity, and the dorsal body cavity.
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Answer:
Their parents are smokers.
Peer pressure—their friends encourage them to try cigarettes and to keep smoking.
Explanation:
Answer:
a. It can be used for photosynthesis.
Explanation:
Since carbon dioxide is needed in the photosynthesis process, then much of the carbon dioxide which is produced by green plants is not always excreted in form of metabolic waste because it can be easily used in the photosynthesis process.
