The junction between a motor neuron's axon and the muscle fiber plasma membrane is called a _1_ junction. A motor neuron and all of the skeletal muscle fibers it stimulates is called a _2_. The actual gap between the axon terminal and the muscle fiber is called a __ 3_. Within the axon terminal are many small vesicles containing a neurotransmitter substance called 4 When the _5_ reaches the ends of the axon, the neurotransmitter is released and diffuses to the muscle cell membrane to combine with receptors there. The combining of the neurotransmitter with the muscle membrane receptors causes a change in permeability of the membrane, resulting in __ 6_

because they want 2 and yea

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

your spelling is a little off : ]

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: