If a person had a low level of neurotransmitters, how could this affect the person?
a) sensory neurons would not be able to form action potentials
b) neurons would not be able to communicate across synapses
c) axons would not be able to receive messages
d) the endocrine system would not be able to produce hormones

B

Explanation:

Neurotransmitters such as acetylcholine, epinephrine are important at a neuron-neuron junction called synapses. When an impulse reaches the end of one neuron, at the synapse, it causes the release of neurotransmitters from synaptic vesicle that diffuse across the synapse and when they bind to their reports on the other end. An impulse is then generated on the subsequent neuron that travels down the axon to the next synapse.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.