Fill in the blanks.
1.
is a biochemical process.
2. The air is filtered in
3. The lungs are placed in
cavity.
4.
increase the surface area in the lungs.
Answers
Answered by
0
Answer:
Means what are you trying to tell I can't understand
Answered by
1
Answer:
1 photosynthesis 2 stomata 3 vertebrae 4 rib cahe
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