Answer:
D. An observation is based on evidence, an inference is not.
Explanation:
When you infer something, you're basically guessing at it, while an observation is something that you can see and prove.
The answer is true, pigs cause air pollution by releasing methane into the air.<span />
Dna is being copied two time
C. the penis produces millions of sperms at a time.
Answer:
Autolysis would likely occur meaning it would digest the entire cell
