Please help !! How have advances in medicine and technology affected population growth?
A. They have increased birth rates and lowered death rates.
B. They have lowered birth rates and lowered death rates.
C. They have not affected birth rates or death rates.
D. They have caused an abrupt decline in the human population.

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes