Regarding the Proliferation of Nuclear Weapons,the Next Countries to Obtain

question 9

Short Answer

Regarding the proliferation of nuclear weapons,the next countries to obtain such after the United States and the Soviet Union were ____________________ and ____________________,and the fifth country was ____________________.

---

Definitions:

Neurotransmitter

Chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.

Receptors

Proteins found inside or on the cell surface that respond to specific chemical signals by initiating a cellular response.

Inhibitory Synapses

These are the connections between neurons that decrease the likelihood of the recipient neuron firing an action potential.

Endorphins

Natural chemicals in the brain that act as painkillers and mood enhancers, often released during exercise, excitement, pain, and sexual activity.