Explain the function of receptors and their location(s) in the cell.

Function: Cell signalling; Location: Cell membranes

Explanation:

Receptors are usually trans-membrane proteins located on cell membranes. Their extracellular part transmits chemical signals from outside the cell into the intracellular where a response is induced.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: