Which of the following is an example of an environmental factor? A. Pollution B. Water quality C. Allergens D. All of the above

Perform surgeries is the correct answer.

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b

Breastfeeding should last for 12 months.

Answerrespiratory illness;