Examlex
If the earth were twice as far from the sun as it presently is,how long (in terms of the present year) would it take it to make one orbit around the sun?
Acetylcholine
A neurotransmitter in the nervous system involved in muscle activation, memory, and learning.
Muscles
Tissues in the body that have the ability to contract, enabling movement of the body and its parts.
Neurotransmitter
Chemical messengers that transmit signals across synapses from one neuron to another in the brain and nervous system.
Gap Junction
Specialized intercellular connections between a multitude of animal cell-types that directly connect the cytoplasm of two cells, allowing various molecules, ions and electrical impulses to directly pass through a regulated gate between cells.
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