Answer:is b why because take part in a conversation or discussion to resolve a problem.
Explanation:
I believe the answer is:
The "spontaneous firing rate" of a neuron refers to <span>its rate of producing action potentials even when it is not stimulated.</span>
Im not to sure but i thinks its pulmonary vein
The birds with the beaks most suited towards digging and grasping. If they find their food deep underground, the beak would need to be able to push through the dirt and be able to keep the worm in it for consumption.