<span>The answer would be Cell specialization</span>
B cells make antibodies. That's just what they do.
2 is D. The flu virus constantly mutates, so a new vaccine every year is developed.
Antibodies attach to cells with the corresponding antigen. anti-anti, that's how i remember it.
You're welcome!
Human interactions... hills can moves n roll due to earth moving, so therefore that's biotic and Tall trees are living, so again Biotic...
I believe the answer is <span>somatosensory cortex; motor cortex
</span> somatosensory cortex receives all sensory<span> input from our body in order to be processed by all of our five senses.
</span>Motor Cortex is the one that would transfer the response that given necessary parts in our body after it's process is done.