A5-year-old child with a ventricular septal defect (vsd) is scheduled for cardiac catheterization. the parents ask the nurse why this test is being done. while formulating a reply, what does the nurse recall is the function of the test?

There are only about 250,000 known fossil species. true or false

9. technology can bring both good and bad things. building a vertical farm can increase food supplies in cities (good), but it may cause unemployment in rural areas (bad). give another example of both the good and bad sides of a technological advancement (5 noints)

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell