They were first used as evidence in 1892.
Spam by definition means 'irrelevant messages sent over the internet' but in the context of teens and social media it basically refers to posting or commenting heaps of stuff, whether it be a spamming of emojis, random words or letters, a particular phrase... Just something that gets said or posted way more times than necessary.
You have just touched a hot mug of coffee. Your hand immediately and reflexively pulls away. This action was controlled by your sensory perception.
The ability to learn about our surroundings or the condition of our internal environment is one of the main functions of sensory receptors. The nervous system receives stimulation from a variety of sources and transforms it into electrochemical signals. This happens when a stimulus modifies a sensory neuron's cell membrane potential. The action potential that is created by the stimulus in the sensory cell is transmitted to the central nervous system (CNS), where it is combined with other sensory data and occasionally higher cognitive functions to create a conscious perception of that stimulus. The motor response may then result from the central integration.
Hence the blank will be filled by sensory perception.
Learn more about sensory perception here brainly.com/question/3405991
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Oil can be extracted by oil pumps.
Hope this helps
