Cnidarians were the first phylum that scientists saw tissue level organization in. Tissue level organization meaning cells all of one type start to function in a unified way.
B THEY RELEASED CARBON DIOXIDE, WHICH EVOLVING ANIMALS NEEDED.
Answer:
Explanation:
Parasympathetic Nervous System. The parasympathetic nervous system is an anatomically defined division of the autonomic nervous system, being that part whose motor components run in cranial nerves III, VII, IX, and X and in the sacral nerves.
As such sex is itself word,it's not like short form of any.
If you really bifurcate then it's like “s” means satisfaction,”e” excitement, experiment & enjoyment ,that come from “ X" factor of both men & women.
