Explanation:
They both are responsible with the digestion.
What help gravitational pull is Actually it's same like drinking coke through straw. Transpiration generates a sucking effect. This is called as transpiration pull and it helps in overcoming the gravitational pull downwards.
The esophagus has to be flexible to allow for food to travel from the mouth to the stomach
Answer:
Estrogen
Explanation:
During puberty, a number of changes occur in the body. The hormone responsible for the development of these characteristics in females is Estrogen. Estrogen causes the female's body to mature and prepare it for pregnancy.