Which of these choices is a goal of the National Park Service
Organic Act?
A. To establish air-quality standards and regulate
emissions of air pollutants
B. To limit the carbon emissions of fossil fuel power
plants
C. To preserve the natural ecology and history of
certain scenic places
D. To assess the conservation of soil and water
resources on private lands

To preserve the natural ecology and history of certain scenic places

Explanation:

I just took it

They transmit signals across a chemical synapse, such as a neuromuscular junction, from one neuron (nerve cell) to another "target" neuron, muscle cell, or gland cell.Neurotransmitters are released from synaptic vesicles in synapses into the synaptic cleft, where they are received by receptors on the target cells.