Answer: I think it is methanogenesis.
Explanation:
Which proposes that once species<span> appear in the </span>fossil record<span> they will become stable.... i think i just wanted to help......</span>
Answer:
The respitory system and the nervous system.
Explanation:
I'm pretty sure
Answer:
Anatomy
Explanation:
Based upon the presence and larger size of the eyes of the cephalopods, you could guess they have a more complex ANATOMY system.