Explanation:in normal birth the baby comes out of the birth canal before the umbilical cord but in some emergency cases such the umbilical cord prolapse the cords slips ahead of the baby and moves into the cervical canal or vagina. This is basically a obstetrical emergency because the cord is at high risk of compression leading to blockage of oxygen and blood to the fetus.
Treatment :
A C section is usually necessary if such an emergency is to occur
They are called a population, because they are the same species living in a given area. The word population means the amount of a certain species living in a certain environment.
The characteristic of life does this behavior best illustrate is definitely A- response , as it is a reaction on the environmental factors. And what about the second question, the answer is D-Desert pack rats are active at night to conserve water.
