Please hurry Base your answer on the passage below

Smokers are passing down problems to future generations. Men who smoke and drink alcohol could be endangering the health of their future children and grandchildren. Toxic chemicals in cigarettes and alcohol are thought to cause changes in the DNA, which are passed down via the sperm to future generations.

4.Explain how smoking and drinking alcohol by males can affect the development of an embryo.

Prenatal exposure to smoking and alcohol increases the risk for Sudden Infant Death Syndrome  Physiological changes associated with these exposures are not well studied. Full-term infants were tested within the first 3 days of life.

Explanation:

Smoking may also increase a baby's risk of various birth defects, including cleft lip, cleft palate, and clubfoot. Even more frightening is research suggesting that babies whose mothers smoked during pregnancy are more likely to die of sudden infant death syndrome

Explanation:

do you have a picture?

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.