A) they needed to feed the population and to trade
Answer: pre-synaptic neuron
Explanation:
A pre-synaptic neuron is a neuron that produces the neurotransmitters in response to the action potential entering into the axon terminal. The vesicles present in the synapse forms the synaptic pool for the exocytosis of the neurotransmitters, which means they are readily releasable.
When the action potential reaches up to the nerve terminal the electrical signals will be generated at the voltage-gated calcium ion channels.
Answer:
Few valuable natural resources is the correct answer.
Explanation:
<span>The Removal Act that was passed by Congress on May 28, 1830 gave
the president the power to bargain in the relocation of southern Indian tribes to
federal land in return for their ancestral land. It was genocide because many Indians were
forced out of their ancestral lands and many were killed by disease during
their travel to federal territory. Those
who resisted were killed due to disease and many conflicts came about as some
of the Indians fought back. Among the
tribes who suffered under this act were the Cherokee, Choctaw, Seminole, Chickasaws
and Creek. Many more died on the Trail
of Tears.</span>