Read this you dumb fuck, and keep your fucking mouth shut about things you clearly have not researched.

Heritability of IQ https://en.wikipedia.org/wiki/Heritability_of_IQ

"Early twin studies of adult individuals have found a heritability of IQ between 57% and 73%,[6] with some recent studies showing heritability for IQ as high as 80%"

Or read some studies, you'll find plenty, like this one:

Genetics and intelligence differences: five special findings https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270739/

"Intelligence is one of the most heritable behavioural traits. [...] The heritability of intelligence [is] 80% in adulthood.

Heritability of height is also about 80% -> https://medlineplus.gov/genetics/understanding/traits/height/#:~:text=Scientists%20estimate%20that%20about%2080,height%20are%20only%20partially%20understood.