Adaptive immunity can be acquired during either 'naturally' (by infection) or 'artificially' (through deliberate actions such as vaccination). Adaptive immunity can also be classified as 'active' or 'passive'
I believe the answer is B
answer of the question given in figure
Being physically active can increase ur chances of living longer and it reduces ur health risk. For the mental thing more focus and motivation. Being socially active can give u a more positive outlook on life
Answer: it burns fewer calories than muscle & tissue; and it stores calories much more readily.