I think it’s A, I might be wrong tho..
'Homeo' meaning 'similar' and 'stasis' meaning 'stable.' Therefore, homeostasis means it is the process used by the body to maintain a stable internal environment. Either a negative or positive feedback can be used in homeostasis.
Sore muscles during vigorous exercise
You need to collect 50 full length strands of hair from the scalp to use as a sample.
It is not easily recognizable