Answer:
Yes it is very likely to cause premature births.
Explanation:
Smoking has been linked to a diet-related increase in the risks of preterm birth due to premature rupture of membranes and late gestational bleeding. Other products with nicotine can affect the lungs and the brain if a developing fetus. This can also increase the risk of miscarriages.
The answer is B.. If u can not talk while exercising it it too intense..you need to be able to do simple things while exercising..
Answer: option D is correct.
Explanation:
Fitness in an individual is also called Darwinian fitness. Note that fitness in individual should not be confused with physical fitness which deal with the physical training for staying healthy. The individual fitness is related to the propagation of gene which in turn increase population.
Option A in the question is about physical fitness, so it is not correct, obviously, B and C Options are not correct too. Fitness here, is the genetic definition which defines fitness as the capacity of a genotype to be propagated into the offsprings.