Answer:
Its D. role of carbon dioxide in photosynthesis.
Explanation:
I know its right bc I just got that question.
Answer:
Substance B is a group of hydroxide ions.
Explanation:
Answer:
2 b
3 b
the others I really don't understand, they are incomplete or misspelled
Prokaryotic cells divide using fusion and eukaryotic reproduce by mitosis.
<span>Mucous membranes provide a mechanical barrier at body openings. They also line the respiratory, GI, urinary, and reproductive tracts. Mucous membranes secrete mucus, a slimy substance that traps pathogens. The membranes also have hair-like cilia.</span>
