Answer:
Well you didn’t state any possible answers but
an example of is inference is, if you see someone eating a new food and he or she makes a face, then you infer he does not like it.
Explanation:
Observation is where you observe something and inference is the facts of information about the object
she need the essential for survival from other organisms to live
Answer:
The exchange of gases between the blood and tissue cells is internal respiration.