Which of the following statements regarding adoption studies is false?
a.
adopted children show some similarity in iq scores.
b.
siblings raised together have higher similarities in iq than children raised apart.
c.
unrelated children raised together show significant resemblance in iq.
d.
in all instances, adopted children show higher iq similarities than related children.

The correct answer is option D. "In all instances, adopted children show higher IQ similarities than related children".

Explanation:

Adoption studies are a classic tool to study how behavioral genetics work. These studies are useful to show how a trait is passed because adopted children share a similar environment but are genetically unrelated. The intelligence quotient (IQ) has been used to measure human intelligence. Adoption studies show that IQ has a strong genetic influence, therefore is not true that in all instances adopted children show higher IQ similarities than related children.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals

states grant a variety of local governments power to meet residents’ needs (source: apex learning). hope this !