It would be reasonable to suggest that the Flynn effect is due in part to .

a. the decreasing reliance on a single test score as an index of mental aptitudes.
b. increasingly improved childhood health and nutrition.
c. the lack of early childhood education in urban areas.
d. the failure to restandardize existing intelligence tests.
e. the deteriorating quality of parental involvement in children's education.

b. increasingly improved childhood health and nutrition

Explanation:

It would be reasonable to suggest that the Flynn effect is due in part to increasingly improved childhood health and nutrition.

Flynn effect is refer to the observed rise over time in standardized intelligence test scores i.e a secular increase in population intelligence quotient (IQ) observed over time, this observation was documentation by James Flynn in 1984, increase in IQ scores can be due to improvements in education and better nutrition.

well, paralell is parallel. i am providing links to .

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a series circuit is one with all the loads in a row. there is only one path for the electricity to flow. if this circuit was a string of light bulbs, and one blew out, the remaining bulbs would turn off.

unlike in series circuits, a charge in a parallel circuit encounters a single voltage drop during its path through the external circuit. the current through a given branch can be predicted using the ohm's law equation and the voltage drop across the resistor and the resistance of the resistor.

a parallel circuit has certain characteristics and basic rules: a parallel circuit has two or more paths for current to flow through. voltage is the same across each component of the parallel circuit.

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.