How does tobacco smoke affect a developing baby? a. it increases a baby’s oxygen supply. b. it increases a baby’s birthweight. c. it increases the baby’s heart rate. d. it increases a baby’s cell growth.

It increases the baby's heart rate. :{

Explanation:

1. plant food just put twinkes in the ground and bam 2. you need a provider first 3. the government should be able to hep with that 4. get more mcdonalds then